Africa dwarfs Argentina: about 30,370,000 km² km² against 2,782,703 km² km². At true size Africa is about 10.9× larger — the whole of Argentina fits into Africa roughly 10 times.
The old Mercator map treated both about equally (1× vs 1.5× inflation), so at least their relative sizes were preserved — even if both were drawn at the wrong absolute scale.
Argentina fits 10× into Africa.