208984971

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2029}}^1$

素因数の和:2203

約数の個数: 32

約数和(自身を含む): 318304000

約数和(自身を除く): 109319029

約数列:

[1, 3, 13, 19, 39, 57, 139, 247, 417, 741, 1807, 2029, 2641, 5421, 6087, 7923, 26377, 34333, 38551, 79131, 102999, 115653, 282031, 501163, 846093, 1503489, 3666403, 5358589, 10999209, 16075767, 69661657, 208984971]

約数ペア:

[(1, 208984971), (3, 69661657), (13, 16075767), (19, 10999209), (39, 5358589), (57, 3666403), (139, 1503489), (247, 846093), (417, 501163), (741, 282031), (1807, 115653), (2029, 102999), (2641, 79131), (5421, 38551), (6087, 34333), (7923, 26377)]