256762917

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{98717}}^1$

素因数の和:98757

約数の個数: 18

約数和(自身を含む): 393983538

約数和(自身を除く): 137220621

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 98717, 296151, 888453, 1678189, 5034567, 15103701, 28529213, 85587639, 256762917]

約数ペア:

[(1, 256762917), (3, 85587639), (9, 28529213), (17, 15103701), (51, 5034567), (153, 1678189), (289, 888453), (867, 296151), (2601, 98717)]