Q: What is the sum of all factors of the number 78,921 excluding 78,921?
A: 42,679
The factors of the number 78,921 are: 1, 3, 9, 27, 37, 79, 111, 237, 333, 711, 999, 2133, 2923, 8769, 26307, 78921.
If you add them up, you will get the total of 78,963. Now subtract 78,921 to get 42,679