20711488

素因数分解:

$2^6\times 7^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:659

約数の個数: 56

約数和(自身を含む): 47621952

約数和(自身を除く): 26910464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 83, 112, 166, 224, 332, 448, 557, 581, 664, 1114, 1162, 1328, 2228, 2324, 2656, 3899, 4456, 4648, 5312, 7798, 8912, 9296, 15596, 17824, 18592, 31192, 35648, 37184, 46231, 62384, 92462, 124768, 184924, 249536, 323617, 369848, 647234, 739696, 1294468, 1479392, 2588936, 2958784, 5177872, 10355744, 20711488]

約数ペア:

[(1, 20711488), (2, 10355744), (4, 5177872), (7, 2958784), (8, 2588936), (14, 1479392), (16, 1294468), (28, 739696), (32, 647234), (56, 369848), (64, 323617), (83, 249536), (112, 184924), (166, 124768), (224, 92462), (332, 62384), (448, 46231), (557, 37184), (581, 35648), (664, 31192), (1114, 18592), (1162, 17824), (1328, 15596), (2228, 9296), (2324, 8912), (2656, 7798), (3899, 5312), (4456, 4648)]