21504042

素因数分解:

$2^1\times 3^6\times 7^3\times {\mathrm{43}}^1$

素因数の和:84

約数の個数: 112

約数和(自身を含む): 57710400

約数和(自身を除く): 36206358

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 43, 49, 54, 63, 81, 86, 98, 126, 129, 147, 162, 189, 243, 258, 294, 301, 343, 378, 387, 441, 486, 567, 602, 686, 729, 774, 882, 903, 1029, 1134, 1161, 1323, 1458, 1701, 1806, 2058, 2107, 2322, 2646, 2709, 3087, 3402, 3483, 3969, 4214, 5103, 5418, 6174, 6321, 6966, 7938, 8127, 9261, 10206, 10449, 11907, 12642, 14749, 16254, 18522, 18963, 20898, 23814, 24381, 27783, 29498, 31347, 35721, 37926, 44247, 48762, 55566, 56889, 62694, 71442, 73143, 83349, 88494, 113778, 132741, 146286, 166698, 170667, 219429, 250047, 265482, 341334, 398223, 438858, 500094, 512001, 796446, 1024002, 1194669, 1536003, 2389338, 3072006, 3584007, 7168014, 10752021, 21504042]

約数ペア:

[(1, 21504042), (2, 10752021), (3, 7168014), (6, 3584007), (7, 3072006), (9, 2389338), (14, 1536003), (18, 1194669), (21, 1024002), (27, 796446), (42, 512001), (43, 500094), (49, 438858), (54, 398223), (63, 341334), (81, 265482), (86, 250047), (98, 219429), (126, 170667), (129, 166698), (147, 146286), (162, 132741), (189, 113778), (243, 88494), (258, 83349), (294, 73143), (301, 71442), (343, 62694), (378, 56889), (387, 55566), (441, 48762), (486, 44247), (567, 37926), (602, 35721), (686, 31347), (729, 29498), (774, 27783), (882, 24381), (903, 23814), (1029, 20898), (1134, 18963), (1161, 18522), (1323, 16254), (1458, 14749), (1701, 12642), (1806, 11907), (2058, 10449), (2107, 10206), (2322, 9261), (2646, 8127), (2709, 7938), (3087, 6966), (3402, 6321), (3483, 6174), (3969, 5418), (4214, 5103)]