21836260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{25391}}^1$

素因数の和:25443

約数の個数: 24

約数和(自身を含む): 46924416

約数和(自身を除く): 25088156

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 25391, 50782, 101564, 126955, 253910, 507820, 1091813, 2183626, 4367252, 5459065, 10918130, 21836260]

約数ペア:

[(1, 21836260), (2, 10918130), (4, 5459065), (5, 4367252), (10, 2183626), (20, 1091813), (43, 507820), (86, 253910), (172, 126955), (215, 101564), (430, 50782), (860, 25391)]