8991891

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{3581}}^1$

素因数の和:3624

約数の個数: 20

約数和(自身を含む): 13869504

約数和(自身を除く): 4877613

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 3581, 10743, 32229, 96687, 111011, 290061, 333033, 999099, 2997297, 8991891]

約数ペア:

[(1, 8991891), (3, 2997297), (9, 999099), (27, 333033), (31, 290061), (81, 111011), (93, 96687), (279, 32229), (837, 10743), (2511, 3581)]