1991238032

素因数分解:

$2^4\times 7^1\times {\mathrm{17778911}}^1$

素因数の和:17778926

約数の個数: 20

約数和(自身を含む): 4409170176

約数和(自身を除く): 2417932144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 17778911, 35557822, 71115644, 124452377, 142231288, 248904754, 284462576, 497809508, 995619016, 1991238032]

約数ペア:

[(1, 1991238032), (2, 995619016), (4, 497809508), (7, 284462576), (8, 248904754), (14, 142231288), (16, 124452377), (28, 71115644), (56, 35557822), (112, 17778911)]