18509139

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 31110144

約数和(自身を除く): 12601005

約数列:

[1, 3, 9, 11, 31, 33, 37, 93, 99, 111, 163, 279, 333, 341, 407, 489, 1023, 1147, 1221, 1467, 1793, 3069, 3441, 3663, 5053, 5379, 6031, 10323, 12617, 15159, 16137, 18093, 37851, 45477, 54279, 55583, 66341, 113553, 166749, 186961, 199023, 500247, 560883, 597069, 1682649, 2056571, 6169713, 18509139]

約数ペア:

[(1, 18509139), (3, 6169713), (9, 2056571), (11, 1682649), (31, 597069), (33, 560883), (37, 500247), (93, 199023), (99, 186961), (111, 166749), (163, 113553), (279, 66341), (333, 55583), (341, 54279), (407, 45477), (489, 37851), (1023, 18093), (1147, 16137), (1221, 15159), (1467, 12617), (1793, 10323), (3069, 6031), (3441, 5379), (3663, 5053)]