20399535

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34871}}^1$

素因数の和:34895

約数の個数: 24

約数和(自身を含む): 38080224

約数和(自身を除く): 17680689

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 34871, 104613, 174355, 313839, 453323, 523065, 1359969, 1569195, 2266615, 4079907, 6799845, 20399535]

約数ペア:

[(1, 20399535), (3, 6799845), (5, 4079907), (9, 2266615), (13, 1569195), (15, 1359969), (39, 523065), (45, 453323), (65, 313839), (117, 174355), (195, 104613), (585, 34871)]