21304258

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{919}}^1$

素因数の和:1161

約数の個数: 16

約数和(自身を含む): 32656320

約数和(自身を除く): 11352062

約数列:

[1, 2, 67, 134, 173, 346, 919, 1838, 11591, 23182, 61573, 123146, 158987, 317974, 10652129, 21304258]

約数ペア:

[(1, 21304258), (2, 10652129), (67, 317974), (134, 158987), (173, 123146), (346, 61573), (919, 23182), (1838, 11591)]