12807805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4349}}^1$

素因数の和:4404

約数の個数: 16

約数和(自身を含む): 16704000

約数和(自身を除く): 3896195

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 4349, 21745, 82631, 134819, 413155, 674095, 2561561, 12807805]

約数ペア:

[(1, 12807805), (5, 2561561), (19, 674095), (31, 413155), (95, 134819), (155, 82631), (589, 21745), (2945, 4349)]