21188336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:190

約数の個数: 80

約数和(自身を含む): 47663616

約数和(自身を除く): 26475280

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 43, 46, 52, 86, 92, 103, 104, 172, 184, 206, 208, 299, 344, 368, 412, 559, 598, 688, 824, 989, 1118, 1196, 1339, 1648, 1978, 2236, 2369, 2392, 2678, 3956, 4429, 4472, 4738, 4784, 5356, 7912, 8858, 8944, 9476, 10712, 12857, 15824, 17716, 18952, 21424, 25714, 30797, 35432, 37904, 51428, 57577, 61594, 70864, 101867, 102856, 115154, 123188, 203734, 205712, 230308, 246376, 407468, 460616, 492752, 814936, 921232, 1324271, 1629872, 2648542, 5297084, 10594168, 21188336]

約数ペア:

[(1, 21188336), (2, 10594168), (4, 5297084), (8, 2648542), (13, 1629872), (16, 1324271), (23, 921232), (26, 814936), (43, 492752), (46, 460616), (52, 407468), (86, 246376), (92, 230308), (103, 205712), (104, 203734), (172, 123188), (184, 115154), (206, 102856), (208, 101867), (299, 70864), (344, 61594), (368, 57577), (412, 51428), (559, 37904), (598, 35432), (688, 30797), (824, 25714), (989, 21424), (1118, 18952), (1196, 17716), (1339, 15824), (1648, 12857), (1978, 10712), (2236, 9476), (2369, 8944), (2392, 8858), (2678, 7912), (3956, 5356), (4429, 4784), (4472, 4738)]