21513184

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8731}}^1$

素因数の和:8759

約数の個数: 48

約数和(自身を含む): 52811136

約数和(自身を除く): 31297952

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8731, 17462, 34924, 61117, 69848, 96041, 122234, 139696, 192082, 244468, 279392, 384164, 488936, 672287, 768328, 977872, 1344574, 1536656, 1955744, 2689148, 3073312, 5378296, 10756592, 21513184]

約数ペア:

[(1, 21513184), (2, 10756592), (4, 5378296), (7, 3073312), (8, 2689148), (11, 1955744), (14, 1536656), (16, 1344574), (22, 977872), (28, 768328), (32, 672287), (44, 488936), (56, 384164), (77, 279392), (88, 244468), (112, 192082), (154, 139696), (176, 122234), (224, 96041), (308, 69848), (352, 61117), (616, 34924), (1232, 17462), (2464, 8731)]