18912069

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1721}}^1$

素因数の和:1778

約数の個数: 32

約数和(自身を含む): 31409280

約数和(自身を除く): 12497211

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 297, 333, 407, 999, 1221, 1721, 3663, 5163, 10989, 15489, 18931, 46467, 56793, 63677, 170379, 191031, 511137, 573093, 700447, 1719279, 2101341, 6304023, 18912069]

約数ペア:

[(1, 18912069), (3, 6304023), (9, 2101341), (11, 1719279), (27, 700447), (33, 573093), (37, 511137), (99, 191031), (111, 170379), (297, 63677), (333, 56793), (407, 46467), (999, 18931), (1221, 15489), (1721, 10989), (3663, 5163)]