Q: What is the sum of all factors of the number 215,163 excluding 215,163?
A: 128,677
The factors of the number 215,163 are: 1, 3, 9, 13, 27, 39, 117, 351, 613, 1839, 5517, 7969, 16551, 23907, 71721, 215163.
If you add them up, you will get the total of 215,291. Now subtract 215,163 to get 128,677