Q: What is the sum of all factors of the number 21,330,405 excluding 21,330,405?
A: 16,590,555
The factors of the number 21,330,405 are: 1, 3, 5, 9, 15, 27, 45, 135, 158003, 474009, 790015, 1422027, 2370045, 4266081, 7110135, 21330405.
If you add them up, you will get the total of 21,330,421. Now subtract 21,330,405 to get 16,590,555