278540247

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{701}}^1\times {\mathrm{6971}}^1$

素因数の和:7694

約数の個数: 16

約数和(自身を含む): 391547520

約数和(自身を除く): 113007273

約数列:

[1, 3, 19, 57, 701, 2103, 6971, 13319, 20913, 39957, 132449, 397347, 4886671, 14660013, 92846749, 278540247]

約数ペア:

[(1, 278540247), (3, 92846749), (19, 14660013), (57, 4886671), (701, 397347), (2103, 132449), (6971, 39957), (13319, 20913)]