19989948

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{761}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 51206400

約数和(自身を除く): 31216452

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 199, 398, 597, 761, 796, 1194, 1522, 2189, 2283, 2388, 3044, 4378, 4566, 6567, 8371, 8756, 9132, 13134, 16742, 25113, 26268, 33484, 50226, 100452, 151439, 302878, 454317, 605756, 908634, 1665829, 1817268, 3331658, 4997487, 6663316, 9994974, 19989948]

約数ペア:

[(1, 19989948), (2, 9994974), (3, 6663316), (4, 4997487), (6, 3331658), (11, 1817268), (12, 1665829), (22, 908634), (33, 605756), (44, 454317), (66, 302878), (132, 151439), (199, 100452), (398, 50226), (597, 33484), (761, 26268), (796, 25113), (1194, 16742), (1522, 13134), (2189, 9132), (2283, 8756), (2388, 8371), (3044, 6567), (4378, 4566)]