21613710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{727}}^1\times {\mathrm{991}}^1$

素因数の和:1728

約数の個数: 32

約数和(自身を含む): 51996672

約数和(自身を除く): 30382962

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 727, 991, 1454, 1982, 2181, 2973, 3635, 4362, 4955, 5946, 7270, 9910, 10905, 14865, 21810, 29730, 720457, 1440914, 2161371, 3602285, 4322742, 7204570, 10806855, 21613710]

約数ペア:

[(1, 21613710), (2, 10806855), (3, 7204570), (5, 4322742), (6, 3602285), (10, 2161371), (15, 1440914), (30, 720457), (727, 29730), (991, 21810), (1454, 14865), (1982, 10905), (2181, 9910), (2973, 7270), (3635, 5946), (4362, 4955)]