Q: What is the sum of all factors of the number 21,100,013 excluding 21,100,013?
A: 3,129,907
The factors of the number 21,100,013 are: 1, 11, 19, 209, 100957, 1110527, 1918183, 21100013.
If you add them up, you will get the total of 21,100,016. Now subtract 21,100,013 to get 3,129,907