291250647

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{823}}^1$

素因数の和:1109

約数の個数: 40

約数和(自身を含む): 463025376

約数和(自身を除く): 171774729

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 257, 459, 771, 823, 1377, 2313, 2469, 4369, 6939, 7407, 13107, 13991, 20817, 22221, 39321, 41973, 66663, 117963, 125919, 211511, 353889, 377757, 634533, 1133271, 1903599, 3595687, 5710797, 10787061, 17132391, 32361183, 97083549, 291250647]

約数ペア:

[(1, 291250647), (3, 97083549), (9, 32361183), (17, 17132391), (27, 10787061), (51, 5710797), (81, 3595687), (153, 1903599), (257, 1133271), (459, 634533), (771, 377757), (823, 353889), (1377, 211511), (2313, 125919), (2469, 117963), (4369, 66663), (6939, 41973), (7407, 39321), (13107, 22221), (13991, 20817)]