28582533

素因数分解:

$3^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 20838267

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 197, 329, 343, 423, 441, 591, 987, 1029, 1379, 1773, 2303, 2961, 3087, 4137, 6909, 9259, 9653, 12411, 16121, 20727, 27777, 28959, 48363, 64813, 67571, 83331, 86877, 145089, 194439, 202713, 453691, 583317, 608139, 1361073, 3175837, 4083219, 9527511, 28582533]

約数ペア:

[(1, 28582533), (3, 9527511), (7, 4083219), (9, 3175837), (21, 1361073), (47, 608139), (49, 583317), (63, 453691), (141, 202713), (147, 194439), (197, 145089), (329, 86877), (343, 83331), (423, 67571), (441, 64813), (591, 48363), (987, 28959), (1029, 27777), (1379, 20727), (1773, 16121), (2303, 12411), (2961, 9653), (3087, 9259), (4137, 6909)]