Flyhalf Frederic Michalak, center David Marty, fullback Thomas Castaignede, hooker Sebastien Bruno and Pierre Mignoni also scored.
In Edinburgh, Scotland was 16-6 ahead after 50 minutes at Murrayfield before Argentina rallied with 17 points to win.
In Prato, Marco Bortolami, Mirco Bergamasco and Josh Sole each scored two tries in Italy's romp over Tonga.
On Friday, Six Nations champion Wales avoided embarrassment when it came back from 10-0 down to beat Fiji 11-10 at Cardiff.



