20571746

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1993}}^1$

素因数の和:2405

約数の個数: 16

約数和(自身を含む): 33331704

約数和(自身を除く): 12759958

約数列:

[1, 2, 13, 26, 397, 794, 1993, 3986, 5161, 10322, 25909, 51818, 791221, 1582442, 10285873, 20571746]

約数ペア:

[(1, 20571746), (2, 10285873), (13, 1582442), (26, 791221), (397, 51818), (794, 25909), (1993, 10322), (3986, 5161)]