208739889

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{2381}}^1$

素因数の和:2598

約数の個数: 32

約数和(自身を含む): 329287680

約数和(自身を除く): 120547791

約数列:

[1, 3, 9, 17, 27, 51, 153, 191, 459, 573, 1719, 2381, 3247, 5157, 7143, 9741, 21429, 29223, 40477, 64287, 87669, 121431, 364293, 454771, 1092879, 1364313, 4092939, 7731107, 12278817, 23193321, 69579963, 208739889]

約数ペア:

[(1, 208739889), (3, 69579963), (9, 23193321), (17, 12278817), (27, 7731107), (51, 4092939), (153, 1364313), (191, 1092879), (459, 454771), (573, 364293), (1719, 121431), (2381, 87669), (3247, 64287), (5157, 40477), (7143, 29223), (9741, 21429)]