20971256

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{20641}}^1$

素因数の和:20774

約数の個数: 16

約数和(自身を含む): 39632640

約数和(自身を除く): 18661384

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 20641, 41282, 82564, 165128, 2621407, 5242814, 10485628, 20971256]

約数ペア:

[(1, 20971256), (2, 10485628), (4, 5242814), (8, 2621407), (127, 165128), (254, 82564), (508, 41282), (1016, 20641)]