20505496

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5419}}^1$

素因数の和:5479

約数の個数: 32

約数和(自身を含む): 42926400

約数和(自身を除く): 22420904

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5419, 10838, 21676, 43352, 59609, 119218, 233017, 238436, 466034, 476872, 932068, 1864136, 2563187, 5126374, 10252748, 20505496]

約数ペア:

[(1, 20505496), (2, 10252748), (4, 5126374), (8, 2563187), (11, 1864136), (22, 932068), (43, 476872), (44, 466034), (86, 238436), (88, 233017), (172, 119218), (344, 59609), (473, 43352), (946, 21676), (1892, 10838), (3784, 5419)]