21653589727

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{360071}}^1$

素因数の和:360171

約数の個数: 24

約数和(自身を含む): 27584395776

約数和(自身を除く): 5930806049

約数列:

[1, 7, 11, 71, 77, 121, 497, 781, 847, 5467, 8591, 60137, 360071, 2520497, 3960781, 25565041, 27725467, 43568591, 178955287, 281215451, 304980137, 1968508157, 3093369961, 21653589727]

約数ペア:

[(1, 21653589727), (7, 3093369961), (11, 1968508157), (71, 304980137), (77, 281215451), (121, 178955287), (497, 43568591), (781, 27725467), (847, 25565041), (5467, 3960781), (8591, 2520497), (60137, 360071)]