20671376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1753}}^1$

素因数の和:1839

約数の個数: 40

約数和(自身を含む): 44369184

約数和(自身を除く): 23697808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 67, 88, 134, 176, 268, 536, 737, 1072, 1474, 1753, 2948, 3506, 5896, 7012, 11792, 14024, 19283, 28048, 38566, 77132, 117451, 154264, 234902, 308528, 469804, 939608, 1291961, 1879216, 2583922, 5167844, 10335688, 20671376]

約数ペア:

[(1, 20671376), (2, 10335688), (4, 5167844), (8, 2583922), (11, 1879216), (16, 1291961), (22, 939608), (44, 469804), (67, 308528), (88, 234902), (134, 154264), (176, 117451), (268, 77132), (536, 38566), (737, 28048), (1072, 19283), (1474, 14024), (1753, 11792), (2948, 7012), (3506, 5896)]