19881564039

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{129944863}}^1$

素因数の和:129944886

約数の個数: 12

約数和(自身を含む): 30407098176

約数和(自身を除く): 10525534137

約数列:

[1, 3, 9, 17, 51, 153, 129944863, 389834589, 1169503767, 2209062671, 6627188013, 19881564039]

約数ペア:

[(1, 19881564039), (3, 6627188013), (9, 2209062671), (17, 1169503767), (51, 389834589), (153, 129944863)]