12221890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{661}}^1$

素因数の和:754

約数の個数: 24

約数和(自身を含む): 22556988

約数和(自身を除く): 10335098

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 661, 1322, 1849, 3305, 3698, 6610, 9245, 18490, 28423, 56846, 142115, 284230, 1222189, 2444378, 6110945, 12221890]

約数ペア:

[(1, 12221890), (2, 6110945), (5, 2444378), (10, 1222189), (43, 284230), (86, 142115), (215, 56846), (430, 28423), (661, 18490), (1322, 9245), (1849, 6610), (3305, 3698)]