128759974

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{213887}}^1$

素因数の和:213939

約数の個数: 16

約数和(自身を含む): 225865728

約数和(自身を除く): 97105754

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 213887, 427774, 1497209, 2994418, 9197141, 18394282, 64379987, 128759974]

約数ペア:

[(1, 128759974), (2, 64379987), (7, 18394282), (14, 9197141), (43, 2994418), (86, 1497209), (301, 427774), (602, 213887)]