128516571

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{206951}}^1$

素因数の和:206983

約数の個数: 16

約数和(自身を含む): 198673920

約数和(自身を除く): 70157349

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 206951, 620853, 1862559, 4759873, 5587677, 14279619, 42838857, 128516571]

約数ペア:

[(1, 128516571), (3, 42838857), (9, 14279619), (23, 5587677), (27, 4759873), (69, 1862559), (207, 620853), (621, 206951)]