81711651

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1171

約数の個数: 32

約数和(自身を含む): 129246208

約数和(自身を除く): 47534557

約数列:

[1, 3, 7, 21, 37, 103, 111, 259, 309, 721, 777, 1021, 2163, 3063, 3811, 7147, 11433, 21441, 26677, 37777, 80031, 105163, 113331, 264439, 315489, 736141, 793317, 2208423, 3891031, 11673093, 27237217, 81711651]

約数ペア:

[(1, 81711651), (3, 27237217), (7, 11673093), (21, 3891031), (37, 2208423), (103, 793317), (111, 736141), (259, 315489), (309, 264439), (721, 113331), (777, 105163), (1021, 80031), (2163, 37777), (3063, 26677), (3811, 21441), (7147, 11433)]