21546340

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6451}}^1$

素因数の和:6627

約数の個数: 24

約数和(自身を含む): 45525312

約数和(自身を除く): 23978972

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 6451, 12902, 25804, 32255, 64510, 129020, 1077317, 2154634, 4309268, 5386585, 10773170, 21546340]

約数ペア:

[(1, 21546340), (2, 10773170), (4, 5386585), (5, 4309268), (10, 2154634), (20, 1077317), (167, 129020), (334, 64510), (668, 32255), (835, 25804), (1670, 12902), (3340, 6451)]