200819979

素因数分解:

$3^4\times {\mathrm{37}}^2\times {\mathrm{1811}}^1$

素因数の和:1897

約数の個数: 30

約数和(自身を含む): 308487564

約数和(自身を除く): 107667585

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 1369, 1811, 2997, 4107, 5433, 12321, 16299, 36963, 48897, 67007, 110889, 146691, 201021, 603063, 1809189, 2479259, 5427567, 7437777, 22313331, 66939993, 200819979]

約数ペア:

[(1, 200819979), (3, 66939993), (9, 22313331), (27, 7437777), (37, 5427567), (81, 2479259), (111, 1809189), (333, 603063), (999, 201021), (1369, 146691), (1811, 110889), (2997, 67007), (4107, 48897), (5433, 36963), (12321, 16299)]