Q: What is the sum of all factors of the number 21,428,878 excluding 21,428,878?
A: 11,961,842
The factors of the number 21,428,878 are: 1, 2, 43, 67, 86, 134, 2881, 3719, 5762, 7438, 159917, 249173, 319834, 498346, 10714439, 21428878.
If you add them up, you will get the total of 21,428,889. Now subtract 21,428,878 to get 11,961,842