21668704768

素因数分解:

$2^9\times {\mathrm{67}}^1\times {\mathrm{631667}}^1$

素因数の和:631752

約数の個数: 40

約数和(自身を含む): 43941352752

約数和(自身を除く): 22272647984

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 256, 268, 512, 536, 1072, 2144, 4288, 8576, 17152, 34304, 631667, 1263334, 2526668, 5053336, 10106672, 20213344, 40426688, 42321689, 80853376, 84643378, 161706752, 169286756, 323413504, 338573512, 677147024, 1354294048, 2708588096, 5417176192, 10834352384, 21668704768]

約数ペア:

[(1, 21668704768), (2, 10834352384), (4, 5417176192), (8, 2708588096), (16, 1354294048), (32, 677147024), (64, 338573512), (67, 323413504), (128, 169286756), (134, 161706752), (256, 84643378), (268, 80853376), (512, 42321689), (536, 40426688), (1072, 20213344), (2144, 10106672), (4288, 5053336), (8576, 2526668), (17152, 1263334), (34304, 631667)]