71251817

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 91069440

約数和(自身を除く): 19817623

約数列:

[1, 7, 13, 43, 91, 131, 139, 301, 559, 917, 973, 1703, 1807, 3913, 5633, 5977, 11921, 12649, 18209, 39431, 41839, 73229, 77701, 127463, 236717, 512603, 543907, 782987, 1657019, 5480909, 10178831, 71251817]

約数ペア:

[(1, 71251817), (7, 10178831), (13, 5480909), (43, 1657019), (91, 782987), (131, 543907), (139, 512603), (301, 236717), (559, 127463), (917, 77701), (973, 73229), (1703, 41839), (1807, 39431), (3913, 18209), (5633, 12649), (5977, 11921)]