18390207

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 9478977

約数列:

[1, 3, 11, 33, 47, 71, 141, 167, 213, 501, 517, 781, 1551, 1837, 2343, 3337, 5511, 7849, 10011, 11857, 23547, 35571, 36707, 86339, 110121, 130427, 259017, 391281, 557279, 1671837, 6130069, 18390207]

約数ペア:

[(1, 18390207), (3, 6130069), (11, 1671837), (33, 557279), (47, 391281), (71, 259017), (141, 130427), (167, 110121), (213, 86339), (501, 36707), (517, 35571), (781, 23547), (1551, 11857), (1837, 10011), (2343, 7849), (3337, 5511)]