21931812

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{12433}}^1$

素因数の和:12457

約数の個数: 54

約数和(自身を含む): 64495158

約数和(自身を除く): 42563346

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 12433, 24866, 37299, 49732, 74598, 87031, 111897, 149196, 174062, 223794, 261093, 348124, 447588, 522186, 609217, 783279, 1044372, 1218434, 1566558, 1827651, 2436868, 3133116, 3655302, 5482953, 7310604, 10965906, 21931812]

約数ペア:

[(1, 21931812), (2, 10965906), (3, 7310604), (4, 5482953), (6, 3655302), (7, 3133116), (9, 2436868), (12, 1827651), (14, 1566558), (18, 1218434), (21, 1044372), (28, 783279), (36, 609217), (42, 522186), (49, 447588), (63, 348124), (84, 261093), (98, 223794), (126, 174062), (147, 149196), (196, 111897), (252, 87031), (294, 74598), (441, 49732), (588, 37299), (882, 24866), (1764, 12433)]