20816379

素因数分解:

$3^3\times {\mathrm{809}}^1\times {\mathrm{953}}^1$

素因数の和:1771

約数の個数: 16

約数和(自身を含む): 30909600

約数和(自身を除く): 10093221

約数列:

[1, 3, 9, 27, 809, 953, 2427, 2859, 7281, 8577, 21843, 25731, 770977, 2312931, 6938793, 20816379]

約数ペア:

[(1, 20816379), (3, 6938793), (9, 2312931), (27, 770977), (809, 25731), (953, 21843), (2427, 8577), (2859, 7281)]