81255419

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{21067}}^1$

素因数の和:21122

約数の個数: 16

約数和(自身を含む): 101126400

約数和(自身を除く): 19870981

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 21067, 147469, 400273, 610943, 2801911, 4276601, 11607917, 81255419]

約数ペア:

[(1, 81255419), (7, 11607917), (19, 4276601), (29, 2801911), (133, 610943), (203, 400273), (551, 147469), (3857, 21067)]