21700503

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19927}}^1$

素因数の和:19955

約数の個数: 18

約数和(自身を含む): 34455512

約数和(自身を除く): 12755009

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19927, 59781, 179343, 219197, 657591, 1972773, 2411167, 7233501, 21700503]

約数ペア:

[(1, 21700503), (3, 7233501), (9, 2411167), (11, 1972773), (33, 657591), (99, 219197), (121, 179343), (363, 59781), (1089, 19927)]