19380459

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{54287}}^1$

素因数の和:54314

約数の個数: 16

約数和(自身を含む): 31269888

約数和(自身を除く): 11889429

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 54287, 162861, 380009, 922879, 1140027, 2768637, 6460153, 19380459]

約数ペア:

[(1, 19380459), (3, 6460153), (7, 2768637), (17, 1140027), (21, 922879), (51, 380009), (119, 162861), (357, 54287)]