9781306

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1997}}^1$

素因数の和:2109

約数の個数: 16

約数和(自身を含む): 15344640

約数和(自身を除く): 5563334

約数列:

[1, 2, 31, 62, 79, 158, 1997, 2449, 3994, 4898, 61907, 123814, 157763, 315526, 4890653, 9781306]

約数ペア:

[(1, 9781306), (2, 4890653), (31, 315526), (62, 157763), (79, 123814), (158, 61907), (1997, 4898), (2449, 3994)]