21200740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3323}}^1$

素因数の和:3372

約数の個数: 48

約数和(自身を含む): 50258880

約数和(自身を除く): 29058140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 3323, 6380, 6646, 13292, 16615, 33230, 36553, 66460, 73106, 96367, 146212, 182765, 192734, 365530, 385468, 481835, 731060, 963670, 1060037, 1927340, 2120074, 4240148, 5300185, 10600370, 21200740]

約数ペア:

[(1, 21200740), (2, 10600370), (4, 5300185), (5, 4240148), (10, 2120074), (11, 1927340), (20, 1060037), (22, 963670), (29, 731060), (44, 481835), (55, 385468), (58, 365530), (110, 192734), (116, 182765), (145, 146212), (220, 96367), (290, 73106), (319, 66460), (580, 36553), (638, 33230), (1276, 16615), (1595, 13292), (3190, 6646), (3323, 6380)]