Q: What is the sum of all factors of the number 991,263 excluding 991,263?
A: 635,873
The factors of the number 991,263 are: 1, 3, 7, 13, 21, 39, 91, 273, 3631, 10893, 25417, 47203, 76251, 141609, 330421, 991263.
If you add them up, you will get the total of 991,898. Now subtract 991,263 to get 635,873