16920659

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 21772800

約数和(自身を除く): 4852141

約数列:

[1, 7, 19, 29, 41, 107, 133, 203, 287, 551, 749, 779, 1189, 2033, 3103, 3857, 4387, 5453, 8323, 14231, 21721, 22591, 30709, 58957, 83353, 127223, 158137, 412699, 583471, 890561, 2417237, 16920659]

約数ペア:

[(1, 16920659), (7, 2417237), (19, 890561), (29, 583471), (41, 412699), (107, 158137), (133, 127223), (203, 83353), (287, 58957), (551, 30709), (749, 22591), (779, 21721), (1189, 14231), (2033, 8323), (3103, 5453), (3857, 4387)]