127278319

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{1559}}^1$

素因数の和:1782

約数の個数: 16

約数和(自身を含む): 148262400

約数和(自身を除く): 20984081

約数列:

[1, 7, 107, 109, 749, 763, 1559, 10913, 11663, 81641, 166813, 169931, 1167691, 1189517, 18182617, 127278319]

約数ペア:

[(1, 127278319), (7, 18182617), (107, 1189517), (109, 1167691), (749, 169931), (763, 166813), (1559, 81641), (10913, 11663)]