Q: What is the sum of all factors of the number 20,826 excluding 20,826?
A: 28,314
The factors of the number 20,826 are: 1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 89, 117, 178, 234, 267, 534, 801, 1157, 1602, 2314, 3471, 6942, 10413, 20826.
If you add them up, you will get the total of 20,854. Now subtract 20,826 to get 28,314