208190745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{660923}}^1$

素因数の和:660941

約数の個数: 24

約数和(自身を含む): 412416576

約数和(自身を除く): 204225831

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 660923, 1982769, 3304615, 4626461, 5948307, 9913845, 13879383, 23132305, 29741535, 41638149, 69396915, 208190745]

約数ペア:

[(1, 208190745), (3, 69396915), (5, 41638149), (7, 29741535), (9, 23132305), (15, 13879383), (21, 9913845), (35, 5948307), (45, 4626461), (63, 3304615), (105, 1982769), (315, 660923)]