28952721

素因数分解:

$3^5\times 7^1\times {\mathrm{17021}}^1$

素因数の和:17043

約数の個数: 24

約数和(自身を含む): 49568064

約数和(自身を除く): 20615343

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 17021, 51063, 119147, 153189, 357441, 459567, 1072323, 1378701, 3216969, 4136103, 9650907, 28952721]

約数ペア:

[(1, 28952721), (3, 9650907), (7, 4136103), (9, 3216969), (21, 1378701), (27, 1072323), (63, 459567), (81, 357441), (189, 153189), (243, 119147), (567, 51063), (1701, 17021)]