21126339

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20063}}^1$

素因数の和:20088

約数の個数: 20

約数和(自身を含む): 33988416

約数和(自身を除く): 12862077

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20063, 60189, 180567, 260819, 541701, 782457, 1625103, 2347371, 7042113, 21126339]

約数ペア:

[(1, 21126339), (3, 7042113), (9, 2347371), (13, 1625103), (27, 782457), (39, 541701), (81, 260819), (117, 180567), (351, 60189), (1053, 20063)]