20570013

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 30476160

約数和(自身を除く): 9906147

約数列:

[1, 3, 9, 73, 131, 219, 239, 393, 657, 717, 1179, 2151, 9563, 17447, 28689, 31309, 52341, 86067, 93927, 157023, 281781, 2285557, 6856671, 20570013]

約数ペア:

[(1, 20570013), (3, 6856671), (9, 2285557), (73, 281781), (131, 157023), (219, 93927), (239, 86067), (393, 52341), (657, 31309), (717, 28689), (1179, 17447), (2151, 9563)]