20379021

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{5387}}^1$

素因数の和:5500

約数の個数: 16

約数和(自身を含む): 29569344

約数和(自身を除く): 9190323

約数列:

[1, 3, 13, 39, 97, 291, 1261, 3783, 5387, 16161, 70031, 210093, 522539, 1567617, 6793007, 20379021]

約数ペア:

[(1, 20379021), (3, 6793007), (13, 1567617), (39, 522539), (97, 210093), (291, 70031), (1261, 16161), (3783, 5387)]