21904509

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{60343}}^1$

素因数の和:60368

約数の個数: 12

約数和(自身を含む): 32103008

約数和(自身を除く): 10198499

約数列:

[1, 3, 11, 33, 121, 363, 60343, 181029, 663773, 1991319, 7301503, 21904509]

約数ペア:

[(1, 21904509), (3, 7301503), (11, 1991319), (33, 663773), (121, 181029), (363, 60343)]