20707905

素因数分解:

$3^1\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1567}}^1$

素因数の和:2456

約数の個数: 16

約数和(自身を含む): 33191424

約数和(自身を除く): 12483519

約数列:

[1, 3, 5, 15, 881, 1567, 2643, 4405, 4701, 7835, 13215, 23505, 1380527, 4141581, 6902635, 20707905]

約数ペア:

[(1, 20707905), (3, 6902635), (5, 4141581), (15, 1380527), (881, 23505), (1567, 13215), (2643, 7835), (4405, 4701)]