19942951

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 25244160

約数和(自身を除く): 5301209

約数列:

[1, 7, 19, 31, 49, 133, 217, 589, 691, 931, 1519, 4123, 4837, 13129, 21421, 28861, 33859, 91903, 149947, 406999, 643321, 1049629, 2848993, 19942951]

約数ペア:

[(1, 19942951), (7, 2848993), (19, 1049629), (31, 643321), (49, 406999), (133, 149947), (217, 91903), (589, 33859), (691, 28861), (931, 21421), (1519, 13129), (4123, 4837)]