18812799

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 28080000

約数和(自身を除く): 9267201

約数列:

[1, 3, 9, 59, 71, 177, 213, 499, 531, 639, 1497, 4189, 4491, 12567, 29441, 35429, 37701, 88323, 106287, 264969, 318861, 2090311, 6270933, 18812799]

約数ペア:

[(1, 18812799), (3, 6270933), (9, 2090311), (59, 318861), (71, 264969), (177, 106287), (213, 88323), (499, 37701), (531, 35429), (639, 29441), (1497, 12567), (4189, 4491)]