12390261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{727}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 19568640

約数和(自身を除く): 7178379

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 727, 741, 897, 1311, 2181, 5681, 9451, 13813, 16721, 17043, 28353, 41439, 50163, 179569, 217373, 317699, 538707, 652119, 953097, 4130087, 12390261]

約数ペア:

[(1, 12390261), (3, 4130087), (13, 953097), (19, 652119), (23, 538707), (39, 317699), (57, 217373), (69, 179569), (247, 50163), (299, 41439), (437, 28353), (727, 17043), (741, 16721), (897, 13813), (1311, 9451), (2181, 5681)]