20928297

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{7351}}^1$

素因数の和:7440

約数の個数: 16

約数和(自身を含む): 30466688

約数和(自身を除く): 9538391

約数列:

[1, 3, 13, 39, 73, 219, 949, 2847, 7351, 22053, 95563, 286689, 536623, 1609869, 6976099, 20928297]

約数ペア:

[(1, 20928297), (3, 6976099), (13, 1609869), (39, 536623), (73, 286689), (219, 95563), (949, 22053), (2847, 7351)]