Q: What is the sum of all factors of the number 105,501,123 excluding 105,501,123?

Why is 90,604,605 the sum of all factors of 105,501,123, excluding 105,501,123?

The factors of the number 105,501,123 are: 1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 169, 189, 243, 273, 351, 367, 507, 567, 819, 1053, 1101, 1183, 1521, 1701, 2457, 2569, 3159, 3303, 3549, 4563, 4771, 7371, 7707, 9909, 10647, 13689, 14313, 22113, 23121, 29727, 31941, 33397, 41067, 42939, 62023, 69363, 89181, 95823, 100191, 128817, 186069, 208089, 287469, 300573, 386451, 434161, 558207, 624267, 901719, 1159353, 1302483, 1674621, 2705157, 3907449, 5023863, 8115471, 11722347, 15071589, 35167041, 105501123.

If you add them up, you will get the total of 105,501,213. Now subtract 105,501,123 to get 90,604,605

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