20719105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{839}}^1$

素因数の和:1304

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 6496895

約数列:

[1, 5, 11, 55, 449, 839, 2245, 4195, 4939, 9229, 24695, 46145, 376711, 1883555, 4143821, 20719105]

約数ペア:

[(1, 20719105), (5, 4143821), (11, 1883555), (55, 376711), (449, 46145), (839, 24695), (2245, 9229), (4195, 4939)]