18989399

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{97}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 23164848

約数和(自身を除く): 4175449

約数列:

[1, 11, 13, 37, 97, 143, 407, 481, 1067, 1261, 1369, 3589, 5291, 13871, 15059, 17797, 39479, 46657, 132793, 195767, 513227, 1460723, 1726309, 18989399]

約数ペア:

[(1, 18989399), (11, 1726309), (13, 1460723), (37, 513227), (97, 195767), (143, 132793), (407, 46657), (481, 39479), (1067, 17797), (1261, 15059), (1369, 13871), (3589, 5291)]