21731436

素因数分解:

$2^2\times 3^3\times {\mathrm{311}}^1\times {\mathrm{647}}^1$

素因数の和:971

約数の個数: 48

約数和(自身を含む): 56609280

約数和(自身を除く): 34877844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 311, 622, 647, 933, 1244, 1294, 1866, 1941, 2588, 2799, 3732, 3882, 5598, 5823, 7764, 8397, 11196, 11646, 16794, 17469, 23292, 33588, 34938, 69876, 201217, 402434, 603651, 804868, 1207302, 1810953, 2414604, 3621906, 5432859, 7243812, 10865718, 21731436]

約数ペア:

[(1, 21731436), (2, 10865718), (3, 7243812), (4, 5432859), (6, 3621906), (9, 2414604), (12, 1810953), (18, 1207302), (27, 804868), (36, 603651), (54, 402434), (108, 201217), (311, 69876), (622, 34938), (647, 33588), (933, 23292), (1244, 17469), (1294, 16794), (1866, 11646), (1941, 11196), (2588, 8397), (2799, 7764), (3732, 5823), (3882, 5598)]