12637737

素因数分解:

$3^2\times 7^2\times {\mathrm{28657}}^1$

素因数の和:28677

約数の個数: 18

約数和(自身を含む): 21235578

約数和(自身を除く): 8597841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 28657, 85971, 200599, 257913, 601797, 1404193, 1805391, 4212579, 12637737]

約数ペア:

[(1, 12637737), (3, 4212579), (7, 1805391), (9, 1404193), (21, 601797), (49, 257913), (63, 200599), (147, 85971), (441, 28657)]