19990845

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{63463}}^1$

素因数の和:63481

約数の個数: 24

約数和(自身を含む): 39601536

約数和(自身を除く): 19610691

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 63463, 190389, 317315, 444241, 571167, 951945, 1332723, 2221205, 2855835, 3998169, 6663615, 19990845]

約数ペア:

[(1, 19990845), (3, 6663615), (5, 3998169), (7, 2855835), (9, 2221205), (15, 1332723), (21, 951945), (35, 571167), (45, 444241), (63, 317315), (105, 190389), (315, 63463)]