18871017

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^3\times {\mathrm{47}}^1$

素因数の和:130

約数の個数: 32

約数和(自身を含む): 29306880

約数和(自身を除く): 10435863

約数列:

[1, 3, 11, 23, 33, 47, 69, 141, 253, 517, 529, 759, 1081, 1551, 1587, 3243, 5819, 11891, 12167, 17457, 24863, 35673, 36501, 74589, 133837, 273493, 401511, 571849, 820479, 1715547, 6290339, 18871017]

約数ペア:

[(1, 18871017), (3, 6290339), (11, 1715547), (23, 820479), (33, 571849), (47, 401511), (69, 273493), (141, 133837), (253, 74589), (517, 36501), (529, 35673), (759, 24863), (1081, 17457), (1551, 12167), (1587, 11891), (3243, 5819)]