Q: What is the sum of all factors of the number 1,261,029 including 1,261,029?

Why is 2,156,544 the sum of all factors of 1,261,029, including 1,261,029?

The factors of the number 1,261,029 are: 1, 3, 7, 11, 21, 33, 53, 77, 103, 159, 231, 309, 371, 583, 721, 1113, 1133, 1749, 2163, 3399, 4081, 5459, 7931, 12243, 16377, 23793, 38213, 60049, 114639, 180147, 420343, 1261029.

If you add them up, you will get the total of 2,156,544.

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