128175131

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 154091520

約数和(自身を除く): 25916389

約数列:

[1, 7, 43, 49, 127, 301, 479, 889, 2107, 3353, 5461, 6223, 20597, 23471, 38227, 60833, 144179, 267589, 425831, 1009253, 2615819, 2980817, 18310733, 128175131]

約数ペア:

[(1, 128175131), (7, 18310733), (43, 2980817), (49, 2615819), (127, 1009253), (301, 425831), (479, 267589), (889, 144179), (2107, 60833), (3353, 38227), (5461, 23471), (6223, 20597)]