Q: What is the sum of all factors of the number 1,580,891 excluding 1,580,891?
A: 121,621
The factors of the number 1,580,891 are: 1, 13, 121607, 1580891.
If you add them up, you will get the total of 1,581,012. Now subtract 1,580,891 to get 121,621