Q: What is the sum of all factors of the number 20,421,423 excluding 20,421,423?

 A: 13,735,377

Why is 13,735,377 the sum of all factors of 20,421,423, excluding 20,421,423?

The factors of the number 20,421,423 are: 1, 3, 9, 11, 27, 29, 33, 87, 99, 261, 297, 319, 783, 957, 2371, 2871, 7113, 8613, 21339, 26081, 64017, 68759, 78243, 206277, 234729, 618831, 704187, 756349, 1856493, 2269047, 6807141, 20421423.

If you add them up, you will get the total of 20,421,436. Now subtract 20,421,423 to get 13,735,377


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