27791379

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 54098928

約数和(自身を除く): 26307549

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 49, 51, 63, 77, 99, 119, 147, 153, 187, 231, 337, 357, 441, 539, 561, 693, 833, 1011, 1071, 1309, 1617, 1683, 2359, 2499, 3033, 3707, 3927, 4851, 5729, 7077, 7497, 9163, 11121, 11781, 16513, 17187, 21231, 25949, 27489, 33363, 40103, 49539, 51561, 63019, 77847, 82467, 120309, 148617, 181643, 189057, 233541, 280721, 360927, 441133, 544929, 567171, 842163, 1323399, 1634787, 2526489, 3087931, 3970197, 9263793, 27791379]

約数ペア:

[(1, 27791379), (3, 9263793), (7, 3970197), (9, 3087931), (11, 2526489), (17, 1634787), (21, 1323399), (33, 842163), (49, 567171), (51, 544929), (63, 441133), (77, 360927), (99, 280721), (119, 233541), (147, 189057), (153, 181643), (187, 148617), (231, 120309), (337, 82467), (357, 77847), (441, 63019), (539, 51561), (561, 49539), (693, 40103), (833, 33363), (1011, 27489), (1071, 25949), (1309, 21231), (1617, 17187), (1683, 16513), (2359, 11781), (2499, 11121), (3033, 9163), (3707, 7497), (3927, 7077), (4851, 5729)]