80656317

素因数分解:

$3^5\times 7^1\times {\mathrm{47417}}^1$

素因数の和:47439

約数の個数: 24

約数和(自身を含む): 138081216

約数和(自身を除く): 57424899

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 47417, 142251, 331919, 426753, 995757, 1280259, 2987271, 3840777, 8961813, 11522331, 26885439, 80656317]

約数ペア:

[(1, 80656317), (3, 26885439), (7, 11522331), (9, 8961813), (21, 3840777), (27, 2987271), (63, 1280259), (81, 995757), (189, 426753), (243, 331919), (567, 142251), (1701, 47417)]