21073503

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{3209}}^1$

素因数の和:3422

約数の個数: 16

約数和(自身を含む): 30816000

約数和(自身を除く): 9742497

約数列:

[1, 3, 11, 33, 199, 597, 2189, 3209, 6567, 9627, 35299, 105897, 638591, 1915773, 7024501, 21073503]

約数ペア:

[(1, 21073503), (3, 7024501), (11, 1915773), (33, 638591), (199, 105897), (597, 35299), (2189, 9627), (3209, 6567)]