20336912

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 40

約数和(自身を含む): 40777152

約数和(自身を除く): 20440240

約数列:

[1, 2, 4, 8, 16, 61, 67, 122, 134, 244, 268, 311, 488, 536, 622, 976, 1072, 1244, 2488, 4087, 4976, 8174, 16348, 18971, 20837, 32696, 37942, 41674, 65392, 75884, 83348, 151768, 166696, 303536, 333392, 1271057, 2542114, 5084228, 10168456, 20336912]

約数ペア:

[(1, 20336912), (2, 10168456), (4, 5084228), (8, 2542114), (16, 1271057), (61, 333392), (67, 303536), (122, 166696), (134, 151768), (244, 83348), (268, 75884), (311, 65392), (488, 41674), (536, 37942), (622, 32696), (976, 20837), (1072, 18971), (1244, 16348), (2488, 8174), (4087, 4976)]