2019900988

素因数分解:

$2^2\times 7^1\times {\mathrm{72139321}}^1$

素因数の和:72139332

約数の個数: 12

約数和(自身を含む): 4039802032

約数和(自身を除く): 2019901044

約数列:

[1, 2, 4, 7, 14, 28, 72139321, 144278642, 288557284, 504975247, 1009950494, 2019900988]

約数ペア:

[(1, 2019900988), (2, 1009950494), (4, 504975247), (7, 288557284), (14, 144278642), (28, 72139321)]