28290297

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1447}}^1$

素因数の和:1490

約数の個数: 32

約数和(自身を含む): 46336000

約数和(自身を除く): 18045703

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1447, 2793, 4341, 6517, 10129, 19551, 27493, 30387, 70903, 82479, 192451, 212709, 496321, 577353, 1347157, 1488963, 4041471, 9430099, 28290297]

約数ペア:

[(1, 28290297), (3, 9430099), (7, 4041471), (19, 1488963), (21, 1347157), (49, 577353), (57, 496321), (133, 212709), (147, 192451), (343, 82479), (399, 70903), (931, 30387), (1029, 27493), (1447, 19551), (2793, 10129), (4341, 6517)]