642549

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:356

約数の個数: 16

約数和(自身を含む): 931392

約数和(自身を除く): 288843

約数列:

[1, 3, 17, 43, 51, 129, 293, 731, 879, 2193, 4981, 12599, 14943, 37797, 214183, 642549]

約数ペア:

[(1, 642549), (3, 214183), (17, 37797), (43, 14943), (51, 12599), (129, 4981), (293, 2193), (731, 879)]