28455921

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{81071}}^1$

素因数の和:81093

約数の個数: 16

約数和(自身を含む): 45400320

約数和(自身を除く): 16944399

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 81071, 243213, 729639, 1053923, 2188917, 3161769, 9485307, 28455921]

約数ペア:

[(1, 28455921), (3, 9485307), (9, 3161769), (13, 2188917), (27, 1053923), (39, 729639), (117, 243213), (351, 81071)]