21439135

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{881}}^1$

素因数の和:1074

約数の個数: 16

約数和(自身を含む): 26756352

約数和(自身を除く): 5317217

約数列:

[1, 5, 31, 155, 157, 785, 881, 4405, 4867, 24335, 27311, 136555, 138317, 691585, 4287827, 21439135]

約数ペア:

[(1, 21439135), (5, 4287827), (31, 691585), (155, 138317), (157, 136555), (785, 27311), (881, 24335), (4405, 4867)]