21648354

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1335

約数の個数: 64

約数和(自身を含む): 55050240

約数和(自身を除く): 33401886

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 31, 39, 42, 62, 78, 91, 93, 182, 186, 217, 273, 403, 434, 546, 651, 806, 1209, 1279, 1302, 2418, 2558, 2821, 3837, 5642, 7674, 8463, 8953, 16627, 16926, 17906, 26859, 33254, 39649, 49881, 53718, 79298, 99762, 116389, 118947, 232778, 237894, 277543, 349167, 515437, 555086, 698334, 832629, 1030874, 1546311, 1665258, 3092622, 3608059, 7216118, 10824177, 21648354]

約数ペア:

[(1, 21648354), (2, 10824177), (3, 7216118), (6, 3608059), (7, 3092622), (13, 1665258), (14, 1546311), (21, 1030874), (26, 832629), (31, 698334), (39, 555086), (42, 515437), (62, 349167), (78, 277543), (91, 237894), (93, 232778), (182, 118947), (186, 116389), (217, 99762), (273, 79298), (403, 53718), (434, 49881), (546, 39649), (651, 33254), (806, 26859), (1209, 17906), (1279, 16926), (1302, 16627), (2418, 8953), (2558, 8463), (2821, 7674), (3837, 5642)]