25981319

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{40787}}^1$

素因数の和:40814

約数の個数: 12

約数和(自身を含む): 32548824

約数和(自身を除く): 6567505

約数列:

[1, 7, 13, 49, 91, 637, 40787, 285509, 530231, 1998563, 3711617, 25981319]

約数ペア:

[(1, 25981319), (7, 3711617), (13, 1998563), (49, 530231), (91, 285509), (637, 40787)]