Q: What is the sum of all factors of the number 21,015,218 excluding 21,015,218?

 A: 16,514,494

Why is 16,514,494 the sum of all factors of 21,015,218, excluding 21,015,218?

The factors of the number 21,015,218 are: 1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 4987, 9974, 34909, 69818, 214441, 244363, 428882, 488726, 1501087, 3002174, 10507609, 21015218.

If you add them up, you will get the total of 21,015,234. Now subtract 21,015,218 to get 16,514,494


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