21058884

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 67931136

約数和(自身を除く): 46872252

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 71, 77, 84, 99, 107, 126, 132, 142, 154, 198, 213, 214, 231, 252, 284, 308, 321, 396, 426, 428, 462, 497, 639, 642, 693, 749, 781, 852, 924, 963, 994, 1177, 1278, 1284, 1386, 1491, 1498, 1562, 1926, 1988, 2247, 2343, 2354, 2556, 2772, 2982, 2996, 3124, 3531, 3852, 4473, 4494, 4686, 4708, 5467, 5964, 6741, 7029, 7062, 7597, 8239, 8946, 8988, 9372, 10593, 10934, 13482, 14058, 14124, 15194, 16401, 16478, 17892, 21186, 21868, 22791, 24717, 26964, 28116, 30388, 32802, 32956, 42372, 45582, 49203, 49434, 53179, 65604, 68373, 74151, 83567, 91164, 98406, 98868, 106358, 136746, 148302, 159537, 167134, 196812, 212716, 250701, 273492, 296604, 319074, 334268, 478611, 501402, 584969, 638148, 752103, 957222, 1002804, 1169938, 1504206, 1754907, 1914444, 2339876, 3008412, 3509814, 5264721, 7019628, 10529442, 21058884]

約数ペア:

[(1, 21058884), (2, 10529442), (3, 7019628), (4, 5264721), (6, 3509814), (7, 3008412), (9, 2339876), (11, 1914444), (12, 1754907), (14, 1504206), (18, 1169938), (21, 1002804), (22, 957222), (28, 752103), (33, 638148), (36, 584969), (42, 501402), (44, 478611), (63, 334268), (66, 319074), (71, 296604), (77, 273492), (84, 250701), (99, 212716), (107, 196812), (126, 167134), (132, 159537), (142, 148302), (154, 136746), (198, 106358), (213, 98868), (214, 98406), (231, 91164), (252, 83567), (284, 74151), (308, 68373), (321, 65604), (396, 53179), (426, 49434), (428, 49203), (462, 45582), (497, 42372), (639, 32956), (642, 32802), (693, 30388), (749, 28116), (781, 26964), (852, 24717), (924, 22791), (963, 21868), (994, 21186), (1177, 17892), (1278, 16478), (1284, 16401), (1386, 15194), (1491, 14124), (1498, 14058), (1562, 13482), (1926, 10934), (1988, 10593), (2247, 9372), (2343, 8988), (2354, 8946), (2556, 8239), (2772, 7597), (2982, 7062), (2996, 7029), (3124, 6741), (3531, 5964), (3852, 5467), (4473, 4708), (4494, 4686)]