18175509

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{20399}}^1$

素因数の和:20422

約数の個数: 20

約数和(自身を含む): 29620800

約数和(自身を除く): 11445291

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 20399, 61197, 183591, 224389, 550773, 673167, 1652319, 2019501, 6058503, 18175509]

約数ペア:

[(1, 18175509), (3, 6058503), (9, 2019501), (11, 1652319), (27, 673167), (33, 550773), (81, 224389), (99, 183591), (297, 61197), (891, 20399)]