20754908

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 36996960

約数和(自身を除く): 16242052

約数列:

[1, 2, 4, 109, 181, 218, 263, 362, 436, 526, 724, 1052, 19729, 28667, 39458, 47603, 57334, 78916, 95206, 114668, 190412, 5188727, 10377454, 20754908]

約数ペア:

[(1, 20754908), (2, 10377454), (4, 5188727), (109, 190412), (181, 114668), (218, 95206), (263, 78916), (362, 57334), (436, 47603), (526, 39458), (724, 28667), (1052, 19729)]