16605891

素因数分解:

$3^8\times {\mathrm{2531}}^1$

素因数の和:2555

約数の個数: 18

約数和(自身を含む): 24917412

約数和(自身を除く): 8311521

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 2531, 6561, 7593, 22779, 68337, 205011, 615033, 1845099, 5535297, 16605891]

約数ペア:

[(1, 16605891), (3, 5535297), (9, 1845099), (27, 615033), (81, 205011), (243, 68337), (729, 22779), (2187, 7593), (2531, 6561)]