20942559

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19231}}^1$

素因数の和:19259

約数の個数: 18

約数和(自身を含む): 33252128

約数和(自身を除く): 12309569

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19231, 57693, 173079, 211541, 634623, 1903869, 2326951, 6980853, 20942559]

約数ペア:

[(1, 20942559), (3, 6980853), (9, 2326951), (11, 1903869), (33, 634623), (99, 211541), (121, 173079), (363, 57693), (1089, 19231)]