20691935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12973}}^1$

素因数の和:13018

約数の個数: 16

約数和(自身を含む): 28023840

約数和(自身を除く): 7331905

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12973, 64865, 142703, 376217, 713515, 1881085, 4138387, 20691935]

約数ペア:

[(1, 20691935), (5, 4138387), (11, 1881085), (29, 713515), (55, 376217), (145, 142703), (319, 64865), (1595, 12973)]