Q: What is the sum of all factors of the number 21,790 excluding 21,790?
A: 17,450
The factors of the number 21,790 are: 1, 2, 5, 10, 2179, 4358, 10895, 21790.
If you add them up, you will get the total of 21,807. Now subtract 21,790 to get 17,450