21254354

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{26111}}^1$

素因数の和:26161

約数の個数: 16

約数和(自身を含む): 35721216

約数和(自身を除く): 14466862

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 26111, 52222, 287221, 574442, 966107, 1932214, 10627177, 21254354]

約数ペア:

[(1, 21254354), (2, 10627177), (11, 1932214), (22, 966107), (37, 574442), (74, 287221), (407, 52222), (814, 26111)]