Hutchinson and Rowe were prominent as Scotland recovered from a slow start, during which Joaquin Oviedo sauntered through the middle of a maul to score.
On 18 minutes, Hutchinson followed some neat footwork with a great pass to find his centre partner Tuipulotu on the touchline.
The skipper touched down in the corner and Fergus Burke, on as a temporary replacement for fly-half Tom Jordan, banged over the extras.
Rowe then broke free to send prop Schoeman plunging over from close range to mark his 50th cap in style.
The Scotland centres were to the fore again when Tuipulotu ripped through the home defence like a meteor before the nimble Hutchinson finished off.
A great one-handed take, along with an undetected nudge on Rowe, allowed Rodrigo Isgro to score early in the second half.
It was a two-point game and the thoughts of nervous Scotland fans may have strayed to November’s crushing defeat at Murrayfield when a 21-0 lead was surrendered.
However, Scotland’s decision-making was solid, as was their set-piece, and a cute back-of-the-hand pass from Ewan Ashman to Ben White from a line-out culminated in replacement lock Brown crunching over.
Lock Scott Cummings was also making his 50th Scotland appearance and he too marked it with a try as a composed pass from White made the most of a three v two overload.
Tomas Rapetti burrowed over to reduce the deficit, with a bloodied Jamie Dobie shown a yellow card for some illicit grappling. Scotland were 33-24 in front but a man down.
Again, the visitors showed a clinical edge as replacement hooker Hiddleston peeled off a maul to make his first international match a memorable one.
Joaquin Moro was sent to the sin-bin in the aftermath and Argentina’s advantage in personnel was gone in a flash.
The hosts, in their first outing of 2026 and missing some key men, were further flattened when Rowe burst away to get the score the full-back’s efforts deserved.
Nine incursions into the home 22, seven tries. A wonderful return.
Lucio Cinti and Agustin Moyano reduced the deficit in the final throes, but, with the job well and truly done, Scotland may have been thinking of their next task against the mighty Springboks.
