Q: What is the sum of all factors of the number 129,668,721 excluding 129,668,721?
A: 83,121,423
The factors of the number 129,668,721 are: 1, 3, 7, 13, 21, 39, 91, 273, 474977, 1424931, 3324839, 6174701, 9974517, 18524103, 43222907, 129668721.
If you add them up, you will get the total of 129,668,804. Now subtract 129,668,721 to get 83,121,423