21871684

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{409}}^1\times {\mathrm{461}}^1$

素因数の和:903

約数の個数: 24

約数和(自身を含む): 39778200

約数和(自身を除く): 17906516

約数列:

[1, 2, 4, 29, 58, 116, 409, 461, 818, 922, 1636, 1844, 11861, 13369, 23722, 26738, 47444, 53476, 188549, 377098, 754196, 5467921, 10935842, 21871684]

約数ペア:

[(1, 21871684), (2, 10935842), (4, 5467921), (29, 754196), (58, 377098), (116, 188549), (409, 53476), (461, 47444), (818, 26738), (922, 23722), (1636, 13369), (1844, 11861)]