21549260

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1223}}^1$

素因数の和:2113

約数の個数: 24

約数和(自身を含む): 45341856

約数和(自身を除く): 23792596

約数列:

[1, 2, 4, 5, 10, 20, 881, 1223, 1762, 2446, 3524, 4405, 4892, 6115, 8810, 12230, 17620, 24460, 1077463, 2154926, 4309852, 5387315, 10774630, 21549260]

約数ペア:

[(1, 21549260), (2, 10774630), (4, 5387315), (5, 4309852), (10, 2154926), (20, 1077463), (881, 24460), (1223, 17620), (1762, 12230), (2446, 8810), (3524, 6115), (4405, 4892)]