20342399

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 36

約数和(自身を含む): 26927712

約数和(自身を除く): 6585313

約数列:

[1, 7, 11, 47, 49, 73, 77, 121, 329, 511, 517, 539, 803, 847, 2303, 3431, 3577, 3619, 5621, 5687, 5929, 8833, 24017, 25333, 37741, 39347, 39809, 61831, 168119, 264187, 278663, 415151, 432817, 1849309, 2906057, 20342399]

約数ペア:

[(1, 20342399), (7, 2906057), (11, 1849309), (47, 432817), (49, 415151), (73, 278663), (77, 264187), (121, 168119), (329, 61831), (511, 39809), (517, 39347), (539, 37741), (803, 25333), (847, 24017), (2303, 8833), (3431, 5929), (3577, 5687), (3619, 5621)]