28032543

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2129}}^1$

素因数の和:2172

約数の個数: 48

約数和(自身を含む): 53164800

約数和(自身を除く): 25132257

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1881, 2129, 4389, 6387, 13167, 14903, 19161, 23419, 40451, 44709, 70257, 121353, 134127, 163933, 210771, 283157, 364059, 444961, 491799, 849471, 1334883, 1475397, 2548413, 3114727, 4004649, 9344181, 28032543]

約数ペア:

[(1, 28032543), (3, 9344181), (7, 4004649), (9, 3114727), (11, 2548413), (19, 1475397), (21, 1334883), (33, 849471), (57, 491799), (63, 444961), (77, 364059), (99, 283157), (133, 210771), (171, 163933), (209, 134127), (231, 121353), (399, 70257), (627, 44709), (693, 40451), (1197, 23419), (1463, 19161), (1881, 14903), (2129, 13167), (4389, 6387)]