Q: What is the sum of all factors of the number 21,290 excluding 21,290?
A: 17,050
The factors of the number 21,290 are: 1, 2, 5, 10, 2129, 4258, 10645, 21290.
If you add them up, you will get the total of 21,307. Now subtract 21,290 to get 17,050