208273905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{661187}}^1$

素因数の和:661205

約数の個数: 24

約数和(自身を含む): 412581312

約数和(自身を除く): 204307407

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 661187, 1983561, 3305935, 4628309, 5950683, 9917805, 13884927, 23141545, 29753415, 41654781, 69424635, 208273905]

約数ペア:

[(1, 208273905), (3, 69424635), (5, 41654781), (7, 29753415), (9, 23141545), (15, 13884927), (21, 9917805), (35, 5950683), (45, 4628309), (63, 3305935), (105, 1983561), (315, 661187)]