21402063

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{1621}}^1$

素因数の和:1796

約数の個数: 20

約数和(自身を含む): 32186968

約数和(自身を除く): 10784905

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 1621, 4401, 4863, 13203, 14589, 43767, 131301, 264223, 792669, 2378007, 7134021, 21402063]

約数ペア:

[(1, 21402063), (3, 7134021), (9, 2378007), (27, 792669), (81, 264223), (163, 131301), (489, 43767), (1467, 14589), (1621, 13203), (4401, 4863)]