19881442

素因数分解:

$2^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1433}}^1$

素因数の和:2433

約数の個数: 16

約数和(自身を含む): 34140672

約数和(自身を除く): 14259230

約数列:

[1, 2, 7, 14, 991, 1433, 1982, 2866, 6937, 10031, 13874, 20062, 1420103, 2840206, 9940721, 19881442]

約数ペア:

[(1, 19881442), (2, 9940721), (7, 2840206), (14, 1420103), (991, 20062), (1433, 13874), (1982, 10031), (2866, 6937)]