Q: What is the sum of all factors of the number 21,004,009 excluding 21,004,009?
A: 1,615,707
The factors of the number 21,004,009 are: 1, 13, 1615693, 21004009.
If you add them up, you will get the total of 21,004,010. Now subtract 21,004,009 to get 1,615,707