20126256471

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{31496489}}^1$

素因数の和:31496566

約数の個数: 12

約数和(自身を含む): 29480714640

約数和(自身を除く): 9354458169

約数列:

[1, 3, 9, 71, 213, 639, 31496489, 94489467, 283468401, 2236250719, 6708752157, 20126256471]

約数ペア:

[(1, 20126256471), (3, 6708752157), (9, 2236250719), (71, 283468401), (213, 94489467), (639, 31496489)]