128418031

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1\times {\mathrm{643}}^1$

素因数の和:1030

約数の個数: 16

約数和(自身を含む): 148954624

約数和(自身を除く): 20536593

約数列:

[1, 7, 103, 277, 643, 721, 1939, 4501, 28531, 66229, 178111, 199717, 463603, 1246777, 18345433, 128418031]

約数ペア:

[(1, 128418031), (7, 18345433), (103, 1246777), (277, 463603), (643, 199717), (721, 178111), (1939, 66229), (4501, 28531)]