25708319

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 33675264

約数和(自身を除く): 7966945

約数列:

[1, 7, 13, 23, 71, 91, 161, 173, 299, 497, 923, 1211, 1633, 2093, 2249, 3979, 6461, 11431, 12283, 15743, 21229, 27853, 51727, 85981, 148603, 159679, 282509, 362089, 1117753, 1977563, 3672617, 25708319]

約数ペア:

[(1, 25708319), (7, 3672617), (13, 1977563), (23, 1117753), (71, 362089), (91, 282509), (161, 159679), (173, 148603), (299, 85981), (497, 51727), (923, 27853), (1211, 21229), (1633, 15743), (2093, 12283), (2249, 11431), (3979, 6461)]