20729885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22171}}^1$

素因数の和:22204

約数の個数: 16

約数和(自身を含む): 28734912

約数和(自身を除く): 8005027

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22171, 110855, 243881, 376907, 1219405, 1884535, 4145977, 20729885]

約数ペア:

[(1, 20729885), (5, 4145977), (11, 1884535), (17, 1219405), (55, 376907), (85, 243881), (187, 110855), (935, 22171)]