20729379

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3631}}^1$

素因数の和:3818

約数の個数: 16

約数和(自身を含む): 30334464

約数和(自身を除く): 9605085

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3631, 5709, 10893, 39941, 119823, 628163, 1884489, 6909793, 20729379]

約数ペア:

[(1, 20729379), (3, 6909793), (11, 1884489), (33, 628163), (173, 119823), (519, 39941), (1903, 10893), (3631, 5709)]