21383744

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:307

約数の個数: 56

約数和(自身を含む): 45110400

約数和(自身を除く): 23726656

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 73, 92, 146, 184, 199, 292, 368, 398, 584, 736, 796, 1168, 1472, 1592, 1679, 2336, 3184, 3358, 4577, 4672, 6368, 6716, 9154, 12736, 13432, 14527, 18308, 26864, 29054, 36616, 53728, 58108, 73232, 107456, 116216, 146464, 232432, 292928, 334121, 464864, 668242, 929728, 1336484, 2672968, 5345936, 10691872, 21383744]

約数ペア:

[(1, 21383744), (2, 10691872), (4, 5345936), (8, 2672968), (16, 1336484), (23, 929728), (32, 668242), (46, 464864), (64, 334121), (73, 292928), (92, 232432), (146, 146464), (184, 116216), (199, 107456), (292, 73232), (368, 58108), (398, 53728), (584, 36616), (736, 29054), (796, 26864), (1168, 18308), (1472, 14527), (1592, 13432), (1679, 12736), (2336, 9154), (3184, 6716), (3358, 6368), (4577, 4672)]