28033047

素因数分解:

$3^4\times 7^3\times {\mathrm{1009}}^1$

素因数の和:1042

約数の個数: 40

約数和(自身を含む): 48884000

約数和(自身を除く): 20850953

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1009, 1029, 1323, 3027, 3087, 3969, 7063, 9081, 9261, 21189, 27243, 27783, 49441, 63567, 81729, 148323, 190701, 346087, 444969, 572103, 1038261, 1334907, 3114783, 4004721, 9344349, 28033047]

約数ペア:

[(1, 28033047), (3, 9344349), (7, 4004721), (9, 3114783), (21, 1334907), (27, 1038261), (49, 572103), (63, 444969), (81, 346087), (147, 190701), (189, 148323), (343, 81729), (441, 63567), (567, 49441), (1009, 27783), (1029, 27243), (1323, 21189), (3027, 9261), (3087, 9081), (3969, 7063)]