128331329

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{5077}}^1$

素因数の和:5264

約数の個数: 16

約数和(自身を含む): 154046208

約数和(自身を除く): 25714879

約数列:

[1, 7, 23, 157, 161, 1099, 3611, 5077, 25277, 35539, 116771, 797089, 817397, 5579623, 18333047, 128331329]

約数ペア:

[(1, 128331329), (7, 18333047), (23, 5579623), (157, 817397), (161, 797089), (1099, 116771), (3611, 35539), (5077, 25277)]