71997479

素因数分解:

${\mathrm{19}}^2\times {\mathrm{53}}^2\times {\mathrm{71}}^1$

素因数の和:215

約数の個数: 18

約数和(自身を含む): 78537816

約数和(自身を除く): 6540337

約数列:

[1, 19, 53, 71, 361, 1007, 1349, 2809, 3763, 19133, 25631, 53371, 71497, 199439, 1014049, 1358443, 3789341, 71997479]

約数ペア:

[(1, 71997479), (19, 3789341), (53, 1358443), (71, 1014049), (361, 199439), (1007, 71497), (1349, 53371), (2809, 25631), (3763, 19133)]