28783431

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20903}}^1$

素因数の和:20932

約数の個数: 20

約数和(自身を含む): 45528912

約数和(自身を除く): 16745481

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20903, 62709, 188127, 355351, 564381, 1066053, 1693143, 3198159, 9594477, 28783431]

約数ペア:

[(1, 28783431), (3, 9594477), (9, 3198159), (17, 1693143), (27, 1066053), (51, 564381), (81, 355351), (153, 188127), (459, 62709), (1377, 20903)]