Q: What is the sum of all factors of the number 21,405,109 excluding 21,405,109?
A: 1,945,931
The factors of the number 21,405,109 are: 1, 11, 1945919, 21405109.
If you add them up, you will get the total of 21,405,110. Now subtract 21,405,109 to get 1,945,931