19939759

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8819}}^1$

素因数の和:8862

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 5461841

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 8819, 61733, 149923, 167561, 1049461, 1172927, 2848537, 19939759]

約数ペア:

[(1, 19939759), (7, 2848537), (17, 1172927), (19, 1049461), (119, 167561), (133, 149923), (323, 61733), (2261, 8819)]