Q: What is the sum of all factors of the number 21,516,891 excluding 21,516,891?
A: 11,142,309
The factors of the number 21,516,891 are: 1, 3, 11, 23, 33, 69, 253, 759, 28349, 85047, 311839, 652027, 935517, 1956081, 7172297, 21516891.
If you add them up, you will get the total of 21,516,902. Now subtract 21,516,891 to get 11,142,309