20812329

素因数分解:

$3^3\times {\mathrm{163}}^1\times {\mathrm{4729}}^1$

素因数の和:4901

約数の個数: 16

約数和(自身を含む): 31028800

約数和(自身を除く): 10216471

約数列:

[1, 3, 9, 27, 163, 489, 1467, 4401, 4729, 14187, 42561, 127683, 770827, 2312481, 6937443, 20812329]

約数ペア:

[(1, 20812329), (3, 6937443), (9, 2312481), (27, 770827), (163, 127683), (489, 42561), (1467, 14187), (4401, 4729)]