19942912

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{3541}}^1$

素因数の和:3570

約数の個数: 40

約数和(自身を含む): 43481592

約数和(自身を除く): 23538680

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1408, 2816, 3541, 5632, 7082, 14164, 28328, 38951, 56656, 77902, 113312, 155804, 226624, 311608, 453248, 623216, 906496, 1246432, 1812992, 2492864, 4985728, 9971456, 19942912]

約数ペア:

[(1, 19942912), (2, 9971456), (4, 4985728), (8, 2492864), (11, 1812992), (16, 1246432), (22, 906496), (32, 623216), (44, 453248), (64, 311608), (88, 226624), (128, 155804), (176, 113312), (256, 77902), (352, 56656), (512, 38951), (704, 28328), (1408, 14164), (2816, 7082), (3541, 5632)]