21157444

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{941}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 46843776

約数和(自身を除く): 25686332

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 73, 77, 146, 154, 292, 308, 511, 803, 941, 1022, 1606, 1882, 2044, 3212, 3764, 5621, 6587, 10351, 11242, 13174, 20702, 22484, 26348, 41404, 68693, 72457, 137386, 144914, 274772, 289828, 480851, 755623, 961702, 1511246, 1923404, 3022492, 5289361, 10578722, 21157444]

約数ペア:

[(1, 21157444), (2, 10578722), (4, 5289361), (7, 3022492), (11, 1923404), (14, 1511246), (22, 961702), (28, 755623), (44, 480851), (73, 289828), (77, 274772), (146, 144914), (154, 137386), (292, 72457), (308, 68693), (511, 41404), (803, 26348), (941, 22484), (1022, 20702), (1606, 13174), (1882, 11242), (2044, 10351), (3212, 6587), (3764, 5621)]