20078876187

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{17294467}}^1$

素因数の和:17294519

約数の個数: 16

約数和(自身を含む): 30438263680

約数和(自身を除く): 10359387493

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 17294467, 51883401, 155650203, 466950609, 743662081, 2230986243, 6692958729, 20078876187]

約数ペア:

[(1, 20078876187), (3, 6692958729), (9, 2230986243), (27, 743662081), (43, 466950609), (129, 155650203), (387, 51883401), (1161, 17294467)]