12686661

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:490

約数の個数: 36

約数和(自身を含む): 20935200

約数和(自身を除く): 8248539

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 169, 171, 247, 439, 507, 741, 1317, 1521, 2223, 3211, 3951, 5707, 8341, 9633, 17121, 25023, 28899, 51363, 74191, 75069, 108433, 222573, 325299, 667719, 975897, 1409629, 4228887, 12686661]

約数ペア:

[(1, 12686661), (3, 4228887), (9, 1409629), (13, 975897), (19, 667719), (39, 325299), (57, 222573), (117, 108433), (169, 75069), (171, 74191), (247, 51363), (439, 28899), (507, 25023), (741, 17121), (1317, 9633), (1521, 8341), (2223, 5707), (3211, 3951)]