19996445

素因数分解:

$5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1861}}^1$

素因数の和:2180

約数の個数: 16

約数和(自身を含む): 27527808

約数和(自身を除く): 7531363

約数列:

[1, 5, 7, 35, 307, 1535, 1861, 2149, 9305, 10745, 13027, 65135, 571327, 2856635, 3999289, 19996445]

約数ペア:

[(1, 19996445), (5, 3999289), (7, 2856635), (35, 571327), (307, 65135), (1535, 13027), (1861, 10745), (2149, 9305)]