209989351556

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{21149}}^1\times {\mathrm{57727}}^1$

素因数の和:78923

約数の個数: 24

約数和(自身を含む): 376051737600

約数和(自身を除く): 166062386044

約数列:

[1, 2, 4, 43, 86, 172, 21149, 42298, 57727, 84596, 115454, 230908, 909407, 1818814, 2482261, 3637628, 4964522, 9929044, 1220868323, 2441736646, 4883473292, 52497337889, 104994675778, 209989351556]

約数ペア:

[(1, 209989351556), (2, 104994675778), (4, 52497337889), (43, 4883473292), (86, 2441736646), (172, 1220868323), (21149, 9929044), (42298, 4964522), (57727, 3637628), (84596, 2482261), (115454, 1818814), (230908, 909407)]