18722295

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13421}}^1$

素因数の和:13463

約数の個数: 24

約数和(自身を含む): 33501312

約数和(自身を除く): 14779017

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 13421, 40263, 67105, 120789, 201315, 416051, 603945, 1248153, 2080255, 3744459, 6240765, 18722295]

約数ペア:

[(1, 18722295), (3, 6240765), (5, 3744459), (9, 2080255), (15, 1248153), (31, 603945), (45, 416051), (93, 201315), (155, 120789), (279, 67105), (465, 40263), (1395, 13421)]