21283060

素因数分解:

$2^2\times 5^1\times {\mathrm{1064153}}^1$

素因数の和:1064162

約数の個数: 12

約数和(自身を含む): 44694468

約数和(自身を除く): 23411408

約数列:

[1, 2, 4, 5, 10, 20, 1064153, 2128306, 4256612, 5320765, 10641530, 21283060]

約数ペア:

[(1, 21283060), (2, 10641530), (4, 5320765), (5, 4256612), (10, 2128306), (20, 1064153)]