251640259

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1\times {\mathrm{809}}^1$

素因数の和:1230

約数の個数: 16

約数和(自身を含む): 275970240

約数和(自身を除く): 24329981

約数列:

[1, 13, 71, 337, 809, 923, 4381, 10517, 23927, 57439, 272633, 311051, 746707, 3544229, 19356943, 251640259]

約数ペア:

[(1, 251640259), (13, 19356943), (71, 3544229), (337, 746707), (809, 311051), (923, 272633), (4381, 57439), (10517, 23927)]