21031859536

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77323013}}^1$

素因数の和:77323038

約数の個数: 20

約数和(自身を含む): 43146241812

約数和(自身を除く): 22114382276

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77323013, 154646026, 309292052, 618584104, 1237168208, 1314491221, 2628982442, 5257964884, 10515929768, 21031859536]

約数ペア:

[(1, 21031859536), (2, 10515929768), (4, 5257964884), (8, 2628982442), (16, 1314491221), (17, 1237168208), (34, 618584104), (68, 309292052), (136, 154646026), (272, 77323013)]