261657891

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{881003}}^1$

素因数の和:881023

約数の個数: 16

約数和(自身を含む): 422881920

約数和(自身を除く): 161224029

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 881003, 2643009, 7929027, 9691033, 23787081, 29073099, 87219297, 261657891]

約数ペア:

[(1, 261657891), (3, 87219297), (9, 29073099), (11, 23787081), (27, 9691033), (33, 7929027), (99, 2643009), (297, 881003)]