Q: What is the sum of all factors of the number 39,879 excluding 39,879?
A: 27,961
The factors of the number 39,879 are: 1, 3, 7, 9, 21, 27, 63, 189, 211, 633, 1477, 1899, 4431, 5697, 13293, 39879.
If you add them up, you will get the total of 39,906. Now subtract 39,879 to get 27,961