21083916

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1559}}^1$

素因数の和:1603

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 38670324

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 49, 69, 84, 92, 98, 138, 147, 161, 196, 276, 294, 322, 483, 588, 644, 966, 1127, 1559, 1932, 2254, 3118, 3381, 4508, 4677, 6236, 6762, 9354, 10913, 13524, 18708, 21826, 32739, 35857, 43652, 65478, 71714, 76391, 107571, 130956, 143428, 152782, 215142, 229173, 250999, 305564, 430284, 458346, 501998, 752997, 916692, 1003996, 1505994, 1756993, 3011988, 3513986, 5270979, 7027972, 10541958, 21083916]

約数ペア:

[(1, 21083916), (2, 10541958), (3, 7027972), (4, 5270979), (6, 3513986), (7, 3011988), (12, 1756993), (14, 1505994), (21, 1003996), (23, 916692), (28, 752997), (42, 501998), (46, 458346), (49, 430284), (69, 305564), (84, 250999), (92, 229173), (98, 215142), (138, 152782), (147, 143428), (161, 130956), (196, 107571), (276, 76391), (294, 71714), (322, 65478), (483, 43652), (588, 35857), (644, 32739), (966, 21826), (1127, 18708), (1559, 13524), (1932, 10913), (2254, 9354), (3118, 6762), (3381, 6236), (4508, 4677)]