Q: What is the sum of all factors of the number 21,102,123 excluding 21,102,123?
A: 11,508,693
The factors of the number 21,102,123 are: 1, 3, 7, 21, 71, 213, 497, 1491, 14153, 42459, 99071, 297213, 1004863, 3014589, 7034041, 21102123.
If you add them up, you will get the total of 21,102,134. Now subtract 21,102,123 to get 11,508,693