19876213

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 24820992

約数和(自身を除く): 4944779

約数列:

[1, 7, 17, 49, 107, 119, 223, 749, 833, 1561, 1819, 3791, 5243, 10927, 12733, 23861, 26537, 89131, 167027, 185759, 405637, 1169189, 2839459, 19876213]

約数ペア:

[(1, 19876213), (7, 2839459), (17, 1169189), (49, 405637), (107, 185759), (119, 167027), (223, 89131), (749, 26537), (833, 23861), (1561, 12733), (1819, 10927), (3791, 5243)]