21210530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4703}}^1$

素因数の和:4762

約数の個数: 32

約数和(自身を含む): 42674688

約数和(自身を除く): 21464158

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 4703, 9406, 23515, 47030, 51733, 103466, 192823, 258665, 385646, 517330, 964115, 1928230, 2121053, 4242106, 10605265, 21210530]

約数ペア:

[(1, 21210530), (2, 10605265), (5, 4242106), (10, 2121053), (11, 1928230), (22, 964115), (41, 517330), (55, 385646), (82, 258665), (110, 192823), (205, 103466), (410, 51733), (451, 47030), (902, 23515), (2255, 9406), (4510, 4703)]