21427107

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 32686080

約数和(自身を除く): 11258973

約数列:

[1, 3, 13, 31, 37, 39, 93, 111, 403, 479, 481, 1147, 1209, 1437, 1443, 3441, 6227, 14849, 14911, 17723, 18681, 44547, 44733, 53169, 193037, 230399, 549413, 579111, 691197, 1648239, 7142369, 21427107]

約数ペア:

[(1, 21427107), (3, 7142369), (13, 1648239), (31, 691197), (37, 579111), (39, 549413), (93, 230399), (111, 193037), (403, 53169), (479, 44733), (481, 44547), (1147, 18681), (1209, 17723), (1437, 14911), (1443, 14849), (3441, 6227)]