21043390

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{91493}}^1$

素因数の和:91523

約数の個数: 16

約数和(自身を含む): 39525408

約数和(自身を除く): 18482018

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 91493, 182986, 457465, 914930, 2104339, 4208678, 10521695, 21043390]

約数ペア:

[(1, 21043390), (2, 10521695), (5, 4208678), (10, 2104339), (23, 914930), (46, 457465), (115, 182986), (230, 91493)]