20545228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10859}}^1$

素因数の和:10917

約数の個数: 24

約数和(自身を含む): 40138560

約数和(自身を除く): 19593332

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10859, 21718, 43436, 119449, 238898, 466937, 477796, 933874, 1867748, 5136307, 10272614, 20545228]

約数ペア:

[(1, 20545228), (2, 10272614), (4, 5136307), (11, 1867748), (22, 933874), (43, 477796), (44, 466937), (86, 238898), (172, 119449), (473, 43436), (946, 21718), (1892, 10859)]