18726939

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 34354944

約数和(自身を除く): 15628005

約数列:

[1, 3, 7, 9, 11, 21, 33, 61, 63, 77, 99, 183, 231, 427, 443, 549, 671, 693, 1281, 1329, 2013, 3101, 3843, 3987, 4697, 4873, 6039, 9303, 14091, 14619, 27023, 27909, 34111, 42273, 43857, 81069, 102333, 189161, 243207, 297253, 306999, 567483, 891759, 1702449, 2080771, 2675277, 6242313, 18726939]

約数ペア:

[(1, 18726939), (3, 6242313), (7, 2675277), (9, 2080771), (11, 1702449), (21, 891759), (33, 567483), (61, 306999), (63, 297253), (77, 243207), (99, 189161), (183, 102333), (231, 81069), (427, 43857), (443, 42273), (549, 34111), (671, 27909), (693, 27023), (1281, 14619), (1329, 14091), (2013, 9303), (3101, 6039), (3843, 4873), (3987, 4697)]