19387615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4201}}^1$

素因数の和:4290

約数の個数: 16

約数和(自身を含む): 25413696

約数和(自身を除く): 6026081

約数列:

[1, 5, 13, 65, 71, 355, 923, 4201, 4615, 21005, 54613, 273065, 298271, 1491355, 3877523, 19387615]

約数ペア:

[(1, 19387615), (5, 3877523), (13, 1491355), (65, 298271), (71, 273065), (355, 54613), (923, 21005), (4201, 4615)]