18231309

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 27061632

約数和(自身を除く): 8830323

約数列:

[1, 3, 9, 71, 103, 213, 277, 309, 639, 831, 927, 2493, 7313, 19667, 21939, 28531, 59001, 65817, 85593, 177003, 256779, 2025701, 6077103, 18231309]

約数ペア:

[(1, 18231309), (3, 6077103), (9, 2025701), (71, 256779), (103, 177003), (213, 85593), (277, 65817), (309, 59001), (639, 28531), (831, 21939), (927, 19667), (2493, 7313)]