20608119

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4481}}^1$

素因数の和:4567

約数の個数: 24

約数和(自身を含む): 34493472

約数和(自身を除く): 13885353

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4481, 4599, 13443, 31367, 40329, 94101, 282303, 327113, 981339, 2289791, 2944017, 6869373, 20608119]

約数ペア:

[(1, 20608119), (3, 6869373), (7, 2944017), (9, 2289791), (21, 981339), (63, 327113), (73, 282303), (219, 94101), (511, 40329), (657, 31367), (1533, 13443), (4481, 4599)]