21083403

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{241}}^2$

素因数の和:507

約数の個数: 18

約数和(自身を含む): 31027836

約数和(自身を除く): 9944433

約数列:

[1, 3, 11, 33, 121, 241, 363, 723, 2651, 7953, 29161, 58081, 87483, 174243, 638891, 1916673, 7027801, 21083403]

約数ペア:

[(1, 21083403), (3, 7027801), (11, 1916673), (33, 638891), (121, 174243), (241, 87483), (363, 58081), (723, 29161), (2651, 7953)]