21567316

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:735

約数の個数: 24

約数和(自身を含む): 38586240

約数和(自身を除く): 17018924

約数列:

[1, 2, 4, 79, 131, 158, 262, 316, 521, 524, 1042, 2084, 10349, 20698, 41159, 41396, 68251, 82318, 136502, 164636, 273004, 5391829, 10783658, 21567316]

約数ペア:

[(1, 21567316), (2, 10783658), (4, 5391829), (79, 273004), (131, 164636), (158, 136502), (262, 82318), (316, 68251), (521, 41396), (524, 41159), (1042, 20698), (2084, 10349)]