20375719

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1103}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 26429760

約数和(自身を除く): 6054041

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 1103, 1421, 2639, 7721, 14339, 18473, 31987, 54047, 100373, 223909, 415831, 702611, 1567363, 2910817, 20375719]

約数ペア:

[(1, 20375719), (7, 2910817), (13, 1567363), (29, 702611), (49, 415831), (91, 223909), (203, 100373), (377, 54047), (637, 31987), (1103, 18473), (1421, 14339), (2639, 7721)]