18735272

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 36352800

約数和(自身を除く): 17617528

約数列:

[1, 2, 4, 8, 43, 86, 107, 172, 214, 344, 428, 509, 856, 1018, 2036, 4072, 4601, 9202, 18404, 21887, 36808, 43774, 54463, 87548, 108926, 175096, 217852, 435704, 2341909, 4683818, 9367636, 18735272]

約数ペア:

[(1, 18735272), (2, 9367636), (4, 4683818), (8, 2341909), (43, 435704), (86, 217852), (107, 175096), (172, 108926), (214, 87548), (344, 54463), (428, 43774), (509, 36808), (856, 21887), (1018, 18404), (2036, 9202), (4072, 4601)]