51289531

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^2$

素因数の和:187

約数の個数: 18

約数和(自身を含む): 56859180

約数和(自身を除く): 5569649

約数列:

[1, 19, 31, 53, 589, 961, 1007, 1643, 2809, 18259, 31217, 50933, 53371, 87079, 967727, 1654501, 2699449, 51289531]

約数ペア:

[(1, 51289531), (19, 2699449), (31, 1654501), (53, 967727), (589, 87079), (961, 53371), (1007, 50933), (1643, 31217), (2809, 18259)]