21185024

素因数分解:

$2^9\times 7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:305

約数の個数: 80

約数和(自身を含む): 50675328

約数和(自身を除く): 29490304

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 64, 92, 112, 128, 161, 184, 224, 256, 257, 322, 368, 448, 512, 514, 644, 736, 896, 1028, 1288, 1472, 1792, 1799, 2056, 2576, 2944, 3584, 3598, 4112, 5152, 5888, 5911, 7196, 8224, 10304, 11776, 11822, 14392, 16448, 20608, 23644, 28784, 32896, 41216, 41377, 47288, 57568, 65792, 82432, 82754, 94576, 115136, 131584, 165508, 189152, 230272, 331016, 378304, 460544, 662032, 756608, 921088, 1324064, 1513216, 2648128, 3026432, 5296256, 10592512, 21185024]

約数ペア:

[(1, 21185024), (2, 10592512), (4, 5296256), (7, 3026432), (8, 2648128), (14, 1513216), (16, 1324064), (23, 921088), (28, 756608), (32, 662032), (46, 460544), (56, 378304), (64, 331016), (92, 230272), (112, 189152), (128, 165508), (161, 131584), (184, 115136), (224, 94576), (256, 82754), (257, 82432), (322, 65792), (368, 57568), (448, 47288), (512, 41377), (514, 41216), (644, 32896), (736, 28784), (896, 23644), (1028, 20608), (1288, 16448), (1472, 14392), (1792, 11822), (1799, 11776), (2056, 10304), (2576, 8224), (2944, 7196), (3584, 5911), (3598, 5888), (4112, 5152)]