Q: What is the sum of all factors of the number 21,500 excluding 21,500?
A: 26,548
The factors of the number 21,500 are: 1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 860, 1075, 2150, 4300, 5375, 10750, 21500.
If you add them up, you will get the total of 21,526. Now subtract 21,500 to get 26,548