Peru dwarfs Russia: about 1,296,279 km² km² against 16,879,701 km² km². At true size Peru is about 13× larger — the whole of Russia fits into Peru roughly 13 times.
Peru sits in South America, Russia in Europe. On the old Mercator map the latitude gap distorted how large each felt beside the other; at true size the answer is simply 13×.
The old map muddied it further: Mercator inflates Peru about 1× and Russia about 6.1×, so on a Mercator-style map this pair appears 76.6× apart instead of the true 13×.
Peru fits 13× into Russia.