128450609

素因数分解:

$7^2\times {\mathrm{131}}^1\times {\mathrm{20011}}^1$

素因数の和:20156

約数の個数: 12

約数和(自身を含む): 150570288

約数和(自身を除く): 22119679

約数列:

[1, 7, 49, 131, 917, 6419, 20011, 140077, 980539, 2621441, 18350087, 128450609]

約数ペア:

[(1, 128450609), (7, 18350087), (49, 2621441), (131, 980539), (917, 140077), (6419, 20011)]