16390431

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{11903}}^1$

素因数の和:11932

約数の個数: 20

約数和(自身を含む): 25926912

約数和(自身を除く): 9536481

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 11903, 35709, 107127, 202351, 321381, 607053, 964143, 1821159, 5463477, 16390431]

約数ペア:

[(1, 16390431), (3, 5463477), (9, 1821159), (17, 964143), (27, 607053), (51, 321381), (81, 202351), (153, 107127), (459, 35709), (1377, 11903)]