199781569

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{21023}}^1$

素因数の和:21096

約数の個数: 16

約数和(自身を含む): 233114112

約数和(自身を除く): 33332543

約数列:

[1, 13, 17, 43, 221, 559, 731, 9503, 21023, 273299, 357391, 903989, 4646083, 11751857, 15367813, 199781569]

約数ペア:

[(1, 199781569), (13, 15367813), (17, 11751857), (43, 4646083), (221, 903989), (559, 357391), (731, 273299), (9503, 21023)]