18711748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2609}}^1$

素因数の和:2787

約数の個数: 24

約数和(自身を含む): 35955360

約数和(自身を除く): 17243612

約数列:

[1, 2, 4, 11, 22, 44, 163, 326, 652, 1793, 2609, 3586, 5218, 7172, 10436, 28699, 57398, 114796, 425267, 850534, 1701068, 4677937, 9355874, 18711748]

約数ペア:

[(1, 18711748), (2, 9355874), (4, 4677937), (11, 1701068), (22, 850534), (44, 425267), (163, 114796), (326, 57398), (652, 28699), (1793, 10436), (2609, 7172), (3586, 5218)]