19957689

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 30049032

約数和(自身を除く): 10091343

約数列:

[1, 3, 9, 37, 73, 111, 219, 333, 657, 821, 2463, 2701, 7389, 8103, 24309, 30377, 59933, 91131, 179799, 273393, 539397, 2217521, 6652563, 19957689]

約数ペア:

[(1, 19957689), (3, 6652563), (9, 2217521), (37, 539397), (73, 273393), (111, 179799), (219, 91131), (333, 59933), (657, 30377), (821, 24309), (2463, 8103), (2701, 7389)]