28347865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{62303}}^1$

素因数の和:62328

約数の個数: 16

約数和(自身を含む): 41868288

約数和(自身を除く): 13520423

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 62303, 311515, 436121, 809939, 2180605, 4049695, 5669573, 28347865]

約数ペア:

[(1, 28347865), (5, 5669573), (7, 4049695), (13, 2180605), (35, 809939), (65, 436121), (91, 311515), (455, 62303)]