18103221

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 27300000

約数和(自身を除く): 9196779

約数列:

[1, 3, 9, 29, 87, 139, 261, 417, 499, 1251, 1497, 4031, 4491, 12093, 14471, 36279, 43413, 69361, 130239, 208083, 624249, 2011469, 6034407, 18103221]

約数ペア:

[(1, 18103221), (3, 6034407), (9, 2011469), (29, 624249), (87, 208083), (139, 130239), (261, 69361), (417, 43413), (499, 36279), (1251, 14471), (1497, 12093), (4031, 4491)]