20287142

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{563}}^1$

素因数の和:1027

約数の個数: 16

約数和(自身を含む): 31268160

約数和(自身を除く): 10981018

約数列:

[1, 2, 43, 86, 419, 563, 838, 1126, 18017, 24209, 36034, 48418, 235897, 471794, 10143571, 20287142]

約数ペア:

[(1, 20287142), (2, 10143571), (43, 471794), (86, 235897), (419, 48418), (563, 36034), (838, 24209), (1126, 18017)]