128880417

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{3457}}^1$

素因数の和:3537

約数の個数: 24

約数和(自身を含む): 186842656

約数和(自身を除く): 57962239

約数列:

[1, 3, 17, 43, 51, 129, 289, 731, 867, 2193, 3457, 10371, 12427, 37281, 58769, 148651, 176307, 445953, 999073, 2527067, 2997219, 7581201, 42960139, 128880417]

約数ペア:

[(1, 128880417), (3, 42960139), (17, 7581201), (43, 2997219), (51, 2527067), (129, 999073), (289, 445953), (731, 176307), (867, 148651), (2193, 58769), (3457, 37281), (10371, 12427)]