21078650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{14537}}^1$

素因数の和:14578

約数の個数: 24

約数和(自身を含む): 40561020

約数和(自身を除く): 19482370

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 14537, 29074, 72685, 145370, 363425, 421573, 726850, 843146, 2107865, 4215730, 10539325, 21078650]

約数ペア:

[(1, 21078650), (2, 10539325), (5, 4215730), (10, 2107865), (25, 843146), (29, 726850), (50, 421573), (58, 363425), (145, 145370), (290, 72685), (725, 29074), (1450, 14537)]