Q: What is the sum of all factors of the number 19,660 excluding 19,660?
A: 21,668
The factors of the number 19,660 are: 1, 2, 4, 5, 10, 20, 983, 1966, 3932, 4915, 9830, 19660.
If you add them up, you will get the total of 19,681. Now subtract 19,660 to get 21,668