Q: What is the sum of all factors of the number 21,421,129 excluding 21,421,129?
A: 18,555
The factors of the number 21,421,129 are: 1, 1237, 17317, 21421129.
If you add them up, you will get the total of 21,421,147. Now subtract 21,421,129 to get 18,555