20859404

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1129}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 37968000

約数和(自身を除く): 17108596

約数列:

[1, 2, 4, 31, 62, 124, 149, 298, 596, 1129, 2258, 4516, 4619, 9238, 18476, 34999, 69998, 139996, 168221, 336442, 672884, 5214851, 10429702, 20859404]

約数ペア:

[(1, 20859404), (2, 10429702), (4, 5214851), (31, 672884), (62, 336442), (124, 168221), (149, 139996), (298, 69998), (596, 34999), (1129, 18476), (2258, 9238), (4516, 4619)]