20003896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4289}}^1$

素因数の和:4359

約数の個数: 32

約数和(自身を含む): 41698800

約数和(自身を除く): 21694904

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4289, 4664, 8578, 17156, 34312, 47179, 94358, 188716, 227317, 377432, 454634, 909268, 1818536, 2500487, 5000974, 10001948, 20003896]

約数ペア:

[(1, 20003896), (2, 10001948), (4, 5000974), (8, 2500487), (11, 1818536), (22, 909268), (44, 454634), (53, 377432), (88, 227317), (106, 188716), (212, 94358), (424, 47179), (583, 34312), (1166, 17156), (2332, 8578), (4289, 4664)]