20980233

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{56857}}^1$

素因数の和:56904

約数の個数: 12

約数和(自身を含む): 31044468

約数和(自身を除く): 10064235

約数列:

[1, 3, 9, 41, 123, 369, 56857, 170571, 511713, 2331137, 6993411, 20980233]

約数ペア:

[(1, 20980233), (3, 6993411), (9, 2331137), (41, 511713), (123, 170571), (369, 56857)]