Q: What is the sum of all factors of the number 28,917 excluding 28,917?
A: 23,499
The factors of the number 28,917 are: 1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 243, 357, 459, 567, 1071, 1377, 1701, 3213, 4131, 9639, 28917.
If you add them up, you will get the total of 28,940. Now subtract 28,917 to get 23,499