20564757

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 30487704

約数和(自身を除く): 9922947

約数列:

[1, 3, 9, 73, 113, 219, 277, 339, 657, 831, 1017, 2493, 8249, 20221, 24747, 31301, 60663, 74241, 93903, 181989, 281709, 2284973, 6854919, 20564757]

約数ペア:

[(1, 20564757), (3, 6854919), (9, 2284973), (73, 281709), (113, 181989), (219, 93903), (277, 74241), (339, 60663), (657, 31301), (831, 24747), (1017, 20221), (2493, 8249)]