20975227

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4349}}^1$

素因数の和:4422

約数の個数: 16

約数和(自身を含む): 26308800

約数和(自身を除く): 5333573

約数列:

[1, 7, 13, 53, 91, 371, 689, 4349, 4823, 30443, 56537, 230497, 395759, 1613479, 2996461, 20975227]

約数ペア:

[(1, 20975227), (7, 2996461), (13, 1613479), (53, 395759), (91, 230497), (371, 56537), (689, 30443), (4349, 4823)]