21118444

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2111}}^1$

素因数の和:2217

約数の個数: 24

約数和(自身を含む): 38497536

約数和(自身を除く): 17379092

約数列:

[1, 2, 4, 41, 61, 82, 122, 164, 244, 2111, 2501, 4222, 5002, 8444, 10004, 86551, 128771, 173102, 257542, 346204, 515084, 5279611, 10559222, 21118444]

約数ペア:

[(1, 21118444), (2, 10559222), (4, 5279611), (41, 515084), (61, 346204), (82, 257542), (122, 173102), (164, 128771), (244, 86551), (2111, 10004), (2501, 8444), (4222, 5002)]