Q: What is the sum of all factors of the number 21,036,691 excluding 21,036,691?
A: 1,618,221
The factors of the number 21,036,691 are: 1, 13, 1618207, 21036691.
If you add them up, you will get the total of 21,036,692. Now subtract 21,036,691 to get 1,618,221