Q: What is the sum of all factors of the number 260,421 excluding 260,421?
A: 136,443
The factors of the number 260,421 are: 1, 3, 7, 21, 12401, 37203, 86807, 260421.
If you add them up, you will get the total of 260,557. Now subtract 260,421 to get 136,443