Q: What is the sum of all factors of the number 216,891 excluding 216,891?
A: 116,709
The factors of the number 216,891 are: 1, 3, 9, 27, 29, 87, 261, 277, 783, 831, 2493, 7479, 8033, 24099, 72297, 216891.
If you add them up, you will get the total of 217,007. Now subtract 216,891 to get 116,709