18927837

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4409}}^1$

素因数の和:4474

約数の個数: 20

約数和(自身を含む): 28814940

約数和(自身を除く): 9887103

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4409, 13227, 39681, 119043, 233677, 357129, 701031, 2103093, 6309279, 18927837]

約数ペア:

[(1, 18927837), (3, 6309279), (9, 2103093), (27, 701031), (53, 357129), (81, 233677), (159, 119043), (477, 39681), (1431, 13227), (4293, 4409)]