19845999

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{10069}}^1$

素因数の和:10151

約数の個数: 16

約数和(自身を含む): 29807200

約数和(自身を除く): 9961201

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 10069, 30207, 90621, 271863, 735037, 2205111, 6615333, 19845999]

約数ペア:

[(1, 19845999), (3, 6615333), (9, 2205111), (27, 735037), (73, 271863), (219, 90621), (657, 30207), (1971, 10069)]