129161221

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{31327}}^1$

素因数の和:31384

約数の個数: 16

約数和(自身を含む): 160399360

約数和(自身を除く): 31238139

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 31327, 219289, 595213, 971137, 4166491, 6797959, 18451603, 129161221]

約数ペア:

[(1, 129161221), (7, 18451603), (19, 6797959), (31, 4166491), (133, 971137), (217, 595213), (589, 219289), (4123, 31327)]