20975781

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{1871}}^1$

素因数の和:2012

約数の個数: 16

約数和(自身を含む): 29023488

約数和(自身を除く): 8047707

約数列:

[1, 3, 37, 101, 111, 303, 1871, 3737, 5613, 11211, 69227, 188971, 207681, 566913, 6991927, 20975781]

約数ペア:

[(1, 20975781), (3, 6991927), (37, 566913), (101, 207681), (111, 188971), (303, 69227), (1871, 11211), (3737, 5613)]