20969212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2633}}^1$

素因数の和:2829

約数の個数: 24

約数和(自身を含む): 40268592

約数和(自身を除く): 19299380

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2633, 3982, 5266, 7964, 10532, 28963, 57926, 115852, 476573, 953146, 1906292, 5242303, 10484606, 20969212]

約数ペア:

[(1, 20969212), (2, 10484606), (4, 5242303), (11, 1906292), (22, 953146), (44, 476573), (181, 115852), (362, 57926), (724, 28963), (1991, 10532), (2633, 7964), (3982, 5266)]