391989

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:81

約数の個数: 24

約数和(自身を含む): 619360

約数和(自身を除く): 227371

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 529, 741, 897, 1311, 1587, 5681, 6877, 10051, 17043, 20631, 30153, 130663, 391989]

約数ペア:

[(1, 391989), (3, 130663), (13, 30153), (19, 20631), (23, 17043), (39, 10051), (57, 6877), (69, 5681), (247, 1587), (299, 1311), (437, 897), (529, 741)]