20931129

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{3271}}^1$

素因数の和:3362

約数の個数: 20

約数和(自身を含む): 31672960

約数和(自身を除く): 10741831

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 3271, 6399, 9813, 29439, 88317, 258409, 264951, 775227, 2325681, 6977043, 20931129]

約数ペア:

[(1, 20931129), (3, 6977043), (9, 2325681), (27, 775227), (79, 264951), (81, 258409), (237, 88317), (711, 29439), (2133, 9813), (3271, 6399)]