81405258

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{5531}}^1$

素因数の和:5770

約数の個数: 32

約数和(自身を含む): 178440192

約数和(自身を除く): 97034934

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 223, 446, 669, 1338, 2453, 4906, 5531, 7359, 11062, 14718, 16593, 33186, 60841, 121682, 182523, 365046, 1233413, 2466826, 3700239, 7400478, 13567543, 27135086, 40702629, 81405258]

約数ペア:

[(1, 81405258), (2, 40702629), (3, 27135086), (6, 13567543), (11, 7400478), (22, 3700239), (33, 2466826), (66, 1233413), (223, 365046), (446, 182523), (669, 121682), (1338, 60841), (2453, 33186), (4906, 16593), (5531, 14718), (7359, 11062)]