1999137021

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3070871}}^1$

素因数の和:3070912

約数の個数: 16

約数和(自身を含む): 3144572928

約数和(自身を除く): 1145435907

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 3070871, 9212613, 21496097, 64488291, 95197001, 285591003, 666379007, 1999137021]

約数ペア:

[(1, 1999137021), (3, 666379007), (7, 285591003), (21, 95197001), (31, 64488291), (93, 21496097), (217, 9212613), (651, 3070871)]