20906721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{70393}}^1$

素因数の和:70413

約数の個数: 16

約数和(自身を含む): 33789120

約数和(自身を除く): 12882399

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 70393, 211179, 633537, 774323, 1900611, 2322969, 6968907, 20906721]

約数ペア:

[(1, 20906721), (3, 6968907), (9, 2322969), (11, 1900611), (27, 774323), (33, 633537), (99, 211179), (297, 70393)]