21738710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{310553}}^1$

素因数の和:310567

約数の個数: 16

約数和(自身を含む): 44719776

約数和(自身を除く): 22981066

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 310553, 621106, 1552765, 2173871, 3105530, 4347742, 10869355, 21738710]

約数ペア:

[(1, 21738710), (2, 10869355), (5, 4347742), (7, 3105530), (10, 2173871), (14, 1552765), (35, 621106), (70, 310553)]