19741568

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2003}}^1$

素因数の和:2035

約数の個数: 64

約数和(自身を含む): 49057920

約数和(自身を除く): 29316352

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 308, 352, 448, 616, 704, 896, 1232, 1408, 2003, 2464, 4006, 4928, 8012, 9856, 14021, 16024, 22033, 28042, 32048, 44066, 56084, 64096, 88132, 112168, 128192, 154231, 176264, 224336, 256384, 308462, 352528, 448672, 616924, 705056, 897344, 1233848, 1410112, 1794688, 2467696, 2820224, 4935392, 9870784, 19741568]

約数ペア:

[(1, 19741568), (2, 9870784), (4, 4935392), (7, 2820224), (8, 2467696), (11, 1794688), (14, 1410112), (16, 1233848), (22, 897344), (28, 705056), (32, 616924), (44, 448672), (56, 352528), (64, 308462), (77, 256384), (88, 224336), (112, 176264), (128, 154231), (154, 128192), (176, 112168), (224, 88132), (308, 64096), (352, 56084), (448, 44066), (616, 32048), (704, 28042), (896, 22033), (1232, 16024), (1408, 14021), (2003, 9856), (2464, 8012), (4006, 4928)]