72981223

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{571}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 90879360

約数和(自身を除く): 17898137

約数列:

[1, 7, 19, 31, 133, 217, 571, 589, 961, 3997, 4123, 6727, 10849, 17701, 18259, 75943, 123907, 127813, 336319, 548731, 2354233, 3841117, 10425889, 72981223]

約数ペア:

[(1, 72981223), (7, 10425889), (19, 3841117), (31, 2354233), (133, 548731), (217, 336319), (571, 127813), (589, 123907), (961, 75943), (3997, 18259), (4123, 17701), (6727, 10849)]