20787448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4457}}^1$

素因数の和:4527

約数の個数: 32

約数和(自身を含む): 43331760

約数和(自身を除く): 22544312

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4457, 4664, 8914, 17828, 35656, 49027, 98054, 196108, 236221, 392216, 472442, 944884, 1889768, 2598431, 5196862, 10393724, 20787448]

約数ペア:

[(1, 20787448), (2, 10393724), (4, 5196862), (8, 2598431), (11, 1889768), (22, 944884), (44, 472442), (53, 392216), (88, 236221), (106, 196108), (212, 98054), (424, 49027), (583, 35656), (1166, 17828), (2332, 8914), (4457, 4664)]