20821504

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{3697}}^1$

素因数の和:3726

約数の個数: 40

約数和(自身を含む): 45396648

約数和(自身を除く): 24575144

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1408, 2816, 3697, 5632, 7394, 14788, 29576, 40667, 59152, 81334, 118304, 162668, 236608, 325336, 473216, 650672, 946432, 1301344, 1892864, 2602688, 5205376, 10410752, 20821504]

約数ペア:

[(1, 20821504), (2, 10410752), (4, 5205376), (8, 2602688), (11, 1892864), (16, 1301344), (22, 946432), (32, 650672), (44, 473216), (64, 325336), (88, 236608), (128, 162668), (176, 118304), (256, 81334), (352, 59152), (512, 40667), (704, 29576), (1408, 14788), (2816, 7394), (3697, 5632)]