257251906

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{13901}}^1$

素因数の和:14409

約数の個数: 16

約数和(自身を含む): 407050560

約数和(自身を除く): 149798654

約数列:

[1, 2, 19, 38, 487, 974, 9253, 13901, 18506, 27802, 264119, 528238, 6769787, 13539574, 128625953, 257251906]

約数ペア:

[(1, 257251906), (2, 128625953), (19, 13539574), (38, 6769787), (487, 528238), (974, 264119), (9253, 27802), (13901, 18506)]