20847104

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{2143}}^1$

素因数の和:2180

約数の個数: 40

約数和(自身を含む): 43866240

約数和(自身を除く): 23019136

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2143, 2432, 4286, 4864, 8572, 9728, 17144, 34288, 40717, 68576, 81434, 137152, 162868, 274304, 325736, 548608, 651472, 1097216, 1302944, 2605888, 5211776, 10423552, 20847104]

約数ペア:

[(1, 20847104), (2, 10423552), (4, 5211776), (8, 2605888), (16, 1302944), (19, 1097216), (32, 651472), (38, 548608), (64, 325736), (76, 274304), (128, 162868), (152, 137152), (256, 81434), (304, 68576), (512, 40717), (608, 34288), (1216, 17144), (2143, 9728), (2432, 8572), (4286, 4864)]