20420565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11251}}^1$

素因数の和:11281

約数の個数: 24

約数和(自身を含む): 35916384

約数和(自身を除く): 15495819

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 11251, 33753, 56255, 123761, 168765, 371283, 618805, 1361371, 1856415, 4084113, 6806855, 20420565]

約数ペア:

[(1, 20420565), (3, 6806855), (5, 4084113), (11, 1856415), (15, 1361371), (33, 618805), (55, 371283), (121, 168765), (165, 123761), (363, 56255), (605, 33753), (1815, 11251)]