28911155

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{63541}}^1$

素因数の和:63566

約数の個数: 16

約数和(自身を含む): 42700224

約数和(自身を除く): 13789069

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 63541, 317705, 444787, 826033, 2223935, 4130165, 5782231, 28911155]

約数ペア:

[(1, 28911155), (5, 5782231), (7, 4130165), (13, 2223935), (35, 826033), (65, 444787), (91, 317705), (455, 63541)]