128718947

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{1637}}^1$

素因数の和:1930

約数の個数: 16

約数和(自身を含む): 150958080

約数和(自身を除く): 22239133

約数列:

[1, 7, 47, 239, 329, 1637, 1673, 11233, 11459, 76939, 78631, 391243, 538573, 2738701, 18388421, 128718947]

約数ペア:

[(1, 128718947), (7, 18388421), (47, 2738701), (239, 538573), (329, 391243), (1637, 78631), (1673, 76939), (11233, 11459)]