20712167

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1249}}^1$

素因数の和:1382

約数の個数: 16

約数和(自身を含む): 24960000

約数和(自身を除く): 4247833

約数列:

[1, 7, 23, 103, 161, 721, 1249, 2369, 8743, 16583, 28727, 128647, 201089, 900529, 2958881, 20712167]

約数ペア:

[(1, 20712167), (7, 2958881), (23, 900529), (103, 201089), (161, 128647), (721, 28727), (1249, 16583), (2369, 8743)]