21995721

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5419}}^1$

素因数の和:5477

約数の個数: 24

約数和(自身を含む): 35511840

約数和(自身を除く): 13516119

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 5419, 16257, 48771, 59609, 178827, 222179, 536481, 666537, 1999611, 2443969, 7331907, 21995721]

約数ペア:

[(1, 21995721), (3, 7331907), (9, 2443969), (11, 1999611), (33, 666537), (41, 536481), (99, 222179), (123, 178827), (369, 59609), (451, 48771), (1353, 16257), (4059, 5419)]