Q: What is the sum of all factors of the number 21,403,665 excluding 21,403,665?
A: 15,696,099
The factors of the number 21,403,665 are: 1, 3, 5, 9, 15, 45, 475637, 1426911, 2378185, 4280733, 7134555, 21403665.
If you add them up, you will get the total of 21,403,680. Now subtract 21,403,665 to get 15,696,099