21151449

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 35590464

約数和(自身を除く): 14439015

約数列:

[1, 3, 9, 11, 27, 33, 41, 81, 99, 123, 193, 243, 297, 369, 451, 579, 891, 1107, 1353, 1737, 2123, 2673, 3321, 4059, 5211, 6369, 7913, 9963, 12177, 15633, 19107, 23739, 36531, 46899, 57321, 71217, 87043, 109593, 171963, 213651, 261129, 515889, 640953, 783387, 1922859, 2350161, 7050483, 21151449]

約数ペア:

[(1, 21151449), (3, 7050483), (9, 2350161), (11, 1922859), (27, 783387), (33, 640953), (41, 515889), (81, 261129), (99, 213651), (123, 171963), (193, 109593), (243, 87043), (297, 71217), (369, 57321), (451, 46899), (579, 36531), (891, 23739), (1107, 19107), (1353, 15633), (1737, 12177), (2123, 9963), (2673, 7913), (3321, 6369), (4059, 5211)]