21103614

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:430

約数の個数: 72

約数和(自身を含む): 54098928

約数和(自身を除く): 32995314

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 71, 98, 126, 142, 147, 213, 294, 337, 426, 441, 497, 639, 674, 882, 994, 1011, 1278, 1491, 2022, 2359, 2982, 3033, 3479, 4473, 4718, 6066, 6958, 7077, 8946, 10437, 14154, 16513, 20874, 21231, 23927, 31311, 33026, 42462, 47854, 49539, 62622, 71781, 99078, 143562, 148617, 167489, 215343, 297234, 334978, 430686, 502467, 1004934, 1172423, 1507401, 2344846, 3014802, 3517269, 7034538, 10551807, 21103614]

約数ペア:

[(1, 21103614), (2, 10551807), (3, 7034538), (6, 3517269), (7, 3014802), (9, 2344846), (14, 1507401), (18, 1172423), (21, 1004934), (42, 502467), (49, 430686), (63, 334978), (71, 297234), (98, 215343), (126, 167489), (142, 148617), (147, 143562), (213, 99078), (294, 71781), (337, 62622), (426, 49539), (441, 47854), (497, 42462), (639, 33026), (674, 31311), (882, 23927), (994, 21231), (1011, 20874), (1278, 16513), (1491, 14154), (2022, 10437), (2359, 8946), (2982, 7077), (3033, 6958), (3479, 6066), (4473, 4718)]