20747181

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75997}}^1$

素因数の和:76020

約数の個数: 16

約数和(自身を含む): 34047104

約数和(自身を除く): 13299923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75997, 227991, 531979, 987961, 1595937, 2963883, 6915727, 20747181]

約数ペア:

[(1, 20747181), (3, 6915727), (7, 2963883), (13, 1595937), (21, 987961), (39, 531979), (91, 227991), (273, 75997)]