20175723

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{3001}}^1$

素因数の和:3096

約数の個数: 20

約数和(自身を含む): 30512328

約数和(自身を除く): 10336605

約数列:

[1, 3, 9, 27, 81, 83, 249, 747, 2241, 3001, 6723, 9003, 27009, 81027, 243081, 249083, 747249, 2241747, 6725241, 20175723]

約数ペア:

[(1, 20175723), (3, 6725241), (9, 2241747), (27, 747249), (81, 249083), (83, 243081), (249, 81027), (747, 27009), (2241, 9003), (3001, 6723)]