21471790

素因数分解:

$2^1\times 5^1\times {\mathrm{359}}^1\times {\mathrm{5981}}^1$

素因数の和:6347

約数の個数: 16

約数和(自身を含む): 38763360

約数和(自身を除く): 17291570

約数列:

[1, 2, 5, 10, 359, 718, 1795, 3590, 5981, 11962, 29905, 59810, 2147179, 4294358, 10735895, 21471790]

約数ペア:

[(1, 21471790), (2, 10735895), (5, 4294358), (10, 2147179), (359, 59810), (718, 29905), (1795, 11962), (3590, 5981)]