18978212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2383}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 36446592

約数和(自身を除く): 17468380

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2383, 3982, 4766, 7964, 9532, 26213, 52426, 104852, 431323, 862646, 1725292, 4744553, 9489106, 18978212]

約数ペア:

[(1, 18978212), (2, 9489106), (4, 4744553), (11, 1725292), (22, 862646), (44, 431323), (181, 104852), (362, 52426), (724, 26213), (1991, 9532), (2383, 7964), (3982, 4766)]