19530256

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28387}}^1$

素因数の和:28438

約数の個数: 20

約数和(自身を含む): 38721232

約数和(自身を除く): 19190976

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28387, 56774, 113548, 227096, 454192, 1220641, 2441282, 4882564, 9765128, 19530256]

約数ペア:

[(1, 19530256), (2, 9765128), (4, 4882564), (8, 2441282), (16, 1220641), (43, 454192), (86, 227096), (172, 113548), (344, 56774), (688, 28387)]