19994527

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{367}}^1$

素因数の和:598

約数の個数: 16

約数和(自身を含む): 23575552

約数和(自身を除く): 3581025

約数列:

[1, 7, 43, 181, 301, 367, 1267, 2569, 7783, 15781, 54481, 66427, 110467, 464989, 2856361, 19994527]

約数ペア:

[(1, 19994527), (7, 2856361), (43, 464989), (181, 110467), (301, 66427), (367, 54481), (1267, 15781), (2569, 7783)]