Q: What is the sum of all factors of the number 21,140 excluding 21,140?
A: 29,932
The factors of the number 21,140 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 1057, 1510, 2114, 3020, 4228, 5285, 10570, 21140.
If you add them up, you will get the total of 21,169. Now subtract 21,140 to get 29,932