21045069867

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{881}}^1\times {\mathrm{1237}}^1$

素因数の和:2319

約数の個数: 32

約数和(自身を含む): 28983818304

約数和(自身を除く): 7938748437

約数列:

[1, 3, 41, 123, 157, 471, 881, 1237, 2643, 3711, 6437, 19311, 36121, 50717, 108363, 138317, 152151, 194209, 414951, 582627, 1089797, 3269391, 5670997, 7962569, 17012991, 23887707, 44681677, 134045031, 171098129, 513294387, 7015023289, 21045069867]

約数ペア:

[(1, 21045069867), (3, 7015023289), (41, 513294387), (123, 171098129), (157, 134045031), (471, 44681677), (881, 23887707), (1237, 17012991), (2643, 7962569), (3711, 5670997), (6437, 3269391), (19311, 1089797), (36121, 582627), (50717, 414951), (108363, 194209), (138317, 152151)]