18912467

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2683}}^1$

素因数の和:2762

約数の個数: 16

約数和(自身を含む): 23189760

約数和(自身を除く): 4277293

約数列:

[1, 7, 19, 53, 133, 371, 1007, 2683, 7049, 18781, 50977, 142199, 356839, 995393, 2701781, 18912467]

約数ペア:

[(1, 18912467), (7, 2701781), (19, 995393), (53, 356839), (133, 142199), (371, 50977), (1007, 18781), (2683, 7049)]