Q: What is the sum of all factors of the number 21,028,491 excluding 21,028,491?
A: 13,338,933
The factors of the number 21,028,491 are: 1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 891, 2673, 7867, 23601, 70803, 86537, 212409, 259611, 637227, 778833, 1911681, 2336499, 7009497, 21028491.
If you add them up, you will get the total of 21,028,504. Now subtract 21,028,491 to get 13,338,933