1988987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2018

約数の個数: 16

約数和(自身を含む): 2671872

約数和(自身を除く): 682885

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 1987, 13909, 21857, 25831, 152999, 180817, 284141, 1988987]

約数ペア:

[(1, 1988987), (7, 284141), (11, 180817), (13, 152999), (77, 25831), (91, 21857), (143, 13909), (1001, 1987)]