21967767

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{3433}}^1$

素因数の和:3524

約数の個数: 20

約数和(自身を含む): 33241120

約数和(自身を除く): 11273353

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 3433, 6399, 10299, 30897, 92691, 271207, 278073, 813621, 2440863, 7322589, 21967767]

約数ペア:

[(1, 21967767), (3, 7322589), (9, 2440863), (27, 813621), (79, 278073), (81, 271207), (237, 92691), (711, 30897), (2133, 10299), (3433, 6399)]