20828896

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1259}}^1$

素因数の和:1327

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24893984

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 88, 94, 176, 188, 352, 376, 517, 752, 1034, 1259, 1504, 2068, 2518, 4136, 5036, 8272, 10072, 13849, 16544, 20144, 27698, 40288, 55396, 59173, 110792, 118346, 221584, 236692, 443168, 473384, 650903, 946768, 1301806, 1893536, 2603612, 5207224, 10414448, 20828896]

約数ペア:

[(1, 20828896), (2, 10414448), (4, 5207224), (8, 2603612), (11, 1893536), (16, 1301806), (22, 946768), (32, 650903), (44, 473384), (47, 443168), (88, 236692), (94, 221584), (176, 118346), (188, 110792), (352, 59173), (376, 55396), (517, 40288), (752, 27698), (1034, 20144), (1259, 16544), (1504, 13849), (2068, 10072), (2518, 8272), (4136, 5036)]