20642842

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{433}}^1$

素因数の和:654

約数の個数: 24

約数和(自身を含む): 34286868

約数和(自身を除く): 13644026

約数列:

[1, 2, 11, 22, 121, 197, 242, 394, 433, 866, 2167, 4334, 4763, 9526, 23837, 47674, 52393, 85301, 104786, 170602, 938311, 1876622, 10321421, 20642842]

約数ペア:

[(1, 20642842), (2, 10321421), (11, 1876622), (22, 938311), (121, 170602), (197, 104786), (242, 85301), (394, 52393), (433, 47674), (866, 23837), (2167, 9526), (4334, 4763)]