208209903

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{709}}^1\times {\mathrm{809}}^1$

素因数の和:1543

約数の個数: 24

約数和(自身を含む): 305953200

約数和(自身を除く): 97743297

約数列:

[1, 3, 11, 33, 121, 363, 709, 809, 2127, 2427, 7799, 8899, 23397, 26697, 85789, 97889, 257367, 293667, 573581, 1720743, 6309391, 18928173, 69403301, 208209903]

約数ペア:

[(1, 208209903), (3, 69403301), (11, 18928173), (33, 6309391), (121, 1720743), (363, 573581), (709, 293667), (809, 257367), (2127, 97889), (2427, 85789), (7799, 26697), (8899, 23397)]