21326740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56123}}^1$

素因数の和:56151

約数の個数: 24

約数和(自身を含む): 47144160

約数和(自身を除く): 25817420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56123, 112246, 224492, 280615, 561230, 1066337, 1122460, 2132674, 4265348, 5331685, 10663370, 21326740]

約数ペア:

[(1, 21326740), (2, 10663370), (4, 5331685), (5, 4265348), (10, 2132674), (19, 1122460), (20, 1066337), (38, 561230), (76, 280615), (95, 224492), (190, 112246), (380, 56123)]