208597005

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67181}}^1$

素因数の和:67218

約数の個数: 32

約数和(自身を含む): 386968320

約数和(自身を除く): 178371315

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 67181, 201543, 335905, 604629, 1007715, 1545163, 1813887, 3023145, 4635489, 7725815, 9069435, 13906467, 23177445, 41719401, 69532335, 208597005]

約数ペア:

[(1, 208597005), (3, 69532335), (5, 41719401), (9, 23177445), (15, 13906467), (23, 9069435), (27, 7725815), (45, 4635489), (69, 3023145), (115, 1813887), (135, 1545163), (207, 1007715), (345, 604629), (621, 335905), (1035, 201543), (3105, 67181)]