21184270

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29837}}^1$

素因数の和:29915

約数の個数: 16

約数和(自身を含む): 38670048

約数和(自身を除く): 17485778

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29837, 59674, 149185, 298370, 2118427, 4236854, 10592135, 21184270]

約数ペア:

[(1, 21184270), (2, 10592135), (5, 4236854), (10, 2118427), (71, 298370), (142, 149185), (355, 59674), (710, 29837)]