18357999

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 27221376

約数和(自身を除く): 8863377

約数列:

[1, 3, 11, 33, 103, 121, 309, 363, 491, 1133, 1473, 3399, 5401, 12463, 16203, 37389, 50573, 59411, 151719, 178233, 556303, 1668909, 6119333, 18357999]

約数ペア:

[(1, 18357999), (3, 6119333), (11, 1668909), (33, 556303), (103, 178233), (121, 151719), (309, 59411), (363, 50573), (491, 37389), (1133, 16203), (1473, 12463), (3399, 5401)]