21082563

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{63311}}^1$

素因数の和:63354

約数の個数: 12

約数和(自身を含む): 31276128

約数和(自身を除く): 10193565

約数列:

[1, 3, 9, 37, 111, 333, 63311, 189933, 569799, 2342507, 7027521, 21082563]

約数ペア:

[(1, 21082563), (3, 7027521), (9, 2342507), (37, 569799), (111, 189933), (333, 63311)]