21354512

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8501}}^1$

素因数の和:8666

約数の個数: 20

約数和(自身を含む): 41642796

約数和(自身を除く): 20288284

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8501, 17002, 34004, 68008, 136016, 1334657, 2669314, 5338628, 10677256, 21354512]

約数ペア:

[(1, 21354512), (2, 10677256), (4, 5338628), (8, 2669314), (16, 1334657), (157, 136016), (314, 68008), (628, 34004), (1256, 17002), (2512, 8501)]