398437897

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{17747}}^1$

素因数の和:17928

約数の個数: 16

約数和(自身を含む): 471102912

約数和(自身を除く): 72665015

約数列:

[1, 11, 13, 143, 157, 1727, 2041, 17747, 22451, 195217, 230711, 2537821, 2786279, 30649069, 36221627, 398437897]

約数ペア:

[(1, 398437897), (11, 36221627), (13, 30649069), (143, 2786279), (157, 2537821), (1727, 230711), (2041, 195217), (17747, 22451)]