87897719

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3209}}^1$

素因数の和:3279

約数の個数: 24

約数和(自身を含む): 112709520

約数和(自身を除く): 24811801

約数列:

[1, 7, 13, 43, 49, 91, 301, 559, 637, 2107, 3209, 3913, 22463, 27391, 41717, 137987, 157241, 292019, 965909, 1793831, 2044133, 6761363, 12556817, 87897719]

約数ペア:

[(1, 87897719), (7, 12556817), (13, 6761363), (43, 2044133), (49, 1793831), (91, 965909), (301, 292019), (559, 157241), (637, 137987), (2107, 41717), (3209, 27391), (3913, 22463)]