156638709

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{245131}}^1$

素因数の和:245208

約数の個数: 12

約数和(自身を含む): 229443552

約数和(自身を除く): 72804843

約数列:

[1, 3, 9, 71, 213, 639, 245131, 735393, 2206179, 17404301, 52212903, 156638709]

約数ペア:

[(1, 156638709), (3, 52212903), (9, 17404301), (71, 2206179), (213, 735393), (639, 245131)]