21238156786

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4755521}}^1$

素因数の和:4755570

約数の個数: 32

約数和(自身を含む): 41087710080

約数和(自身を除く): 19849553294

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 154, 203, 319, 406, 638, 2233, 4466, 4755521, 9511042, 33288647, 52310731, 66577294, 104621462, 137910109, 275820218, 366175117, 732350234, 965370763, 1517011199, 1930741526, 3034022398, 10619078393, 21238156786]

約数ペア:

[(1, 21238156786), (2, 10619078393), (7, 3034022398), (11, 1930741526), (14, 1517011199), (22, 965370763), (29, 732350234), (58, 366175117), (77, 275820218), (154, 137910109), (203, 104621462), (319, 66577294), (406, 52310731), (638, 33288647), (2233, 9511042), (4466, 4755521)]