20343609

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 35750400

約数和(自身を除く): 15406791

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 121, 143, 297, 351, 363, 429, 479, 1089, 1287, 1437, 1573, 3267, 3861, 4311, 4719, 5269, 6227, 12933, 14157, 15807, 18681, 42471, 47421, 56043, 57959, 68497, 142263, 168129, 173877, 205491, 521631, 616473, 753467, 1564893, 1849419, 2260401, 6781203, 20343609]

約数ペア:

[(1, 20343609), (3, 6781203), (9, 2260401), (11, 1849419), (13, 1564893), (27, 753467), (33, 616473), (39, 521631), (99, 205491), (117, 173877), (121, 168129), (143, 142263), (297, 68497), (351, 57959), (363, 56043), (429, 47421), (479, 42471), (1089, 18681), (1287, 15807), (1437, 14157), (1573, 12933), (3267, 6227), (3861, 5269), (4311, 4719)]