9890881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 13660416

約数和(自身を除く): 3769535

約数列:

[1, 7, 11, 13, 41, 77, 91, 143, 241, 287, 451, 533, 1001, 1687, 2651, 3133, 3157, 3731, 5863, 9881, 18557, 21931, 34463, 41041, 69167, 108691, 128453, 241241, 760837, 899171, 1412983, 9890881]

約数ペア:

[(1, 9890881), (7, 1412983), (11, 899171), (13, 760837), (41, 241241), (77, 128453), (91, 108691), (143, 69167), (241, 41041), (287, 34463), (451, 21931), (533, 18557), (1001, 9881), (1687, 5863), (2651, 3731), (3133, 3157)]