21709787

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1301}}^1$

素因数の和:1390

約数の個数: 16

約数和(自身を含む): 24935904

約数和(自身を除く): 3226117

約数列:

[1, 11, 37, 41, 407, 451, 1301, 1517, 14311, 16687, 48137, 53341, 529507, 586751, 1973617, 21709787]

約数ペア:

[(1, 21709787), (11, 1973617), (37, 586751), (41, 529507), (407, 53341), (451, 48137), (1301, 16687), (1517, 14311)]