20285749

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{101}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 24308640

約数和(自身を除く): 4022891

約数列:

[1, 11, 19, 31, 101, 209, 341, 589, 961, 1111, 1919, 3131, 6479, 10571, 18259, 21109, 34441, 59489, 97061, 200849, 654379, 1067671, 1844159, 20285749]

約数ペア:

[(1, 20285749), (11, 1844159), (19, 1067671), (31, 654379), (101, 200849), (209, 97061), (341, 59489), (589, 34441), (961, 21109), (1111, 18259), (1919, 10571), (3131, 6479)]