18449193

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20431}}^1$

素因数の和:20484

約数の個数: 16

約数和(自身を含む): 28768256

約数和(自身を除く): 10319063

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 20431, 61293, 143017, 429051, 878533, 2635599, 6149731, 18449193]

約数ペア:

[(1, 18449193), (3, 6149731), (7, 2635599), (21, 878533), (43, 429051), (129, 143017), (301, 61293), (903, 20431)]