20777659

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5387}}^1$

素因数の和:5442

約数の個数: 16

約数和(自身を含む): 25862400

約数和(自身を除く): 5084741

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5387, 37709, 102353, 156223, 716471, 1093561, 2968237, 20777659]

約数ペア:

[(1, 20777659), (7, 2968237), (19, 1093561), (29, 716471), (133, 156223), (203, 102353), (551, 37709), (3857, 5387)]