Q: What is the sum of all factors of the number 21,120,009 excluding 21,120,009?
A: 7,998,135
The factors of the number 21,120,009 are: 1, 3, 43, 101, 129, 303, 1621, 4343, 4863, 13029, 69703, 163721, 209109, 491163, 7040003, 21120009.
If you add them up, you will get the total of 21,120,016. Now subtract 21,120,009 to get 7,998,135