20784951

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1489}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 34329600

約数和(自身を除く): 13544649

約数列:

[1, 3, 9, 11, 27, 33, 47, 99, 141, 297, 423, 517, 1269, 1489, 1551, 4467, 4653, 13401, 13959, 16379, 40203, 49137, 69983, 147411, 209949, 442233, 629847, 769813, 1889541, 2309439, 6928317, 20784951]

約数ペア:

[(1, 20784951), (3, 6928317), (9, 2309439), (11, 1889541), (27, 769813), (33, 629847), (47, 442233), (99, 209949), (141, 147411), (297, 69983), (423, 49137), (517, 40203), (1269, 16379), (1489, 13959), (1551, 13401), (4467, 4653)]