257907611521

素因数分解:

$7^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1\times {\mathrm{979189}}^1$

素因数の和:979584

約数の個数: 16

約数和(自身を含む): 297799096320

約数和(自身を除く): 39891484799

約数列:

[1, 7, 191, 197, 1337, 1379, 37627, 263389, 979189, 6854323, 187025099, 192900233, 1309175693, 1350301631, 36843944503, 257907611521]

約数ペア:

[(1, 257907611521), (7, 36843944503), (191, 1350301631), (197, 1309175693), (1337, 192900233), (1379, 187025099), (37627, 6854323), (263389, 979189)]