18712390

素因数分解:

$2^1\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1801}}^1$

素因数の和:2847

約数の個数: 16

約数和(自身を含む): 33733440

約数和(自身を除く): 15021050

約数列:

[1, 2, 5, 10, 1039, 1801, 2078, 3602, 5195, 9005, 10390, 18010, 1871239, 3742478, 9356195, 18712390]

約数ペア:

[(1, 18712390), (2, 9356195), (5, 3742478), (10, 1871239), (1039, 18010), (1801, 10390), (2078, 9005), (3602, 5195)]