18877804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{1049}}^1$

素因数の和:1473

約数の個数: 24

約数和(自身を含む): 36162000

約数和(自身を除く): 17284196

約数列:

[1, 2, 4, 11, 22, 44, 409, 818, 1049, 1636, 2098, 4196, 4499, 8998, 11539, 17996, 23078, 46156, 429041, 858082, 1716164, 4719451, 9438902, 18877804]

約数ペア:

[(1, 18877804), (2, 9438902), (4, 4719451), (11, 1716164), (22, 858082), (44, 429041), (409, 46156), (818, 23078), (1049, 17996), (1636, 11539), (2098, 8998), (4196, 4499)]