21000369681

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{31964033}}^1$

素因数の和:31964112

約数の個数: 12

約数和(自身を含む): 30749400708

約数和(自身を除く): 9749031027

約数列:

[1, 3, 9, 73, 219, 657, 31964033, 95892099, 287676297, 2333374409, 7000123227, 21000369681]

約数ペア:

[(1, 21000369681), (3, 7000123227), (9, 2333374409), (73, 287676297), (219, 95892099), (657, 31964033)]