17943020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2131}}^1$

素因数の和:2561

約数の個数: 24

約数和(自身を含む): 37787568

約数和(自身を除く): 19844548

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 2131, 4210, 4262, 8420, 8524, 10655, 21310, 42620, 897151, 1794302, 3588604, 4485755, 8971510, 17943020]

約数ペア:

[(1, 17943020), (2, 8971510), (4, 4485755), (5, 3588604), (10, 1794302), (20, 897151), (421, 42620), (842, 21310), (1684, 10655), (2105, 8524), (2131, 8420), (4210, 4262)]