27878643

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12541}}^1$

素因数の和:12579

約数の個数: 24

約数和(自身を含む): 45652880

約数和(自身を除く): 17774237

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 12541, 37623, 112869, 163033, 238279, 489099, 714837, 1467297, 2144511, 3097627, 9292881, 27878643]

約数ペア:

[(1, 27878643), (3, 9292881), (9, 3097627), (13, 2144511), (19, 1467297), (39, 714837), (57, 489099), (117, 238279), (171, 163033), (247, 112869), (741, 37623), (2223, 12541)]