28328859

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{26903}}^1$

素因数の和:26928

約数の個数: 20

約数和(自身を含む): 45575376

約数和(自身を除く): 17246517

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 26903, 80709, 242127, 349739, 726381, 1049217, 2179143, 3147651, 9442953, 28328859]

約数ペア:

[(1, 28328859), (3, 9442953), (9, 3147651), (13, 2179143), (27, 1049217), (39, 726381), (81, 349739), (117, 242127), (351, 80709), (1053, 26903)]