20980701

素因数分解:

$3^4\times 7^1\times {\mathrm{37003}}^1$

素因数の和:37022

約数の個数: 20

約数和(自身を含む): 35819872

約数和(自身を除く): 14839171

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37003, 111009, 259021, 333027, 777063, 999081, 2331189, 2997243, 6993567, 20980701]

約数ペア:

[(1, 20980701), (3, 6993567), (7, 2997243), (9, 2331189), (21, 999081), (27, 777063), (63, 333027), (81, 259021), (189, 111009), (567, 37003)]