Q: What is the sum of all factors of the number 20,809,009 excluding 20,809,009?
A: 2,780,431
The factors of the number 20,809,009 are: 1, 13, 19, 247, 84247, 1095211, 1600693, 20809009.
If you add them up, you will get the total of 20,809,011. Now subtract 20,809,009 to get 2,780,431