20678958

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{26717}}^1$

素因数の和:26768

約数の個数: 24

約数和(自身を含む): 45848088

約数和(自身を除く): 25169130

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 26717, 53434, 80151, 160302, 240453, 480906, 1148831, 2297662, 3446493, 6892986, 10339479, 20678958]

約数ペア:

[(1, 20678958), (2, 10339479), (3, 6892986), (6, 3446493), (9, 2297662), (18, 1148831), (43, 480906), (86, 240453), (129, 160302), (258, 80151), (387, 53434), (774, 26717)]