1821980176

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{2648227}}^1$

素因数の和:2648278

約数の個数: 20

約数和(自身を含む): 3612182992

約数和(自身を除く): 1790202816

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 2648227, 5296454, 10592908, 21185816, 42371632, 113873761, 227747522, 455495044, 910990088, 1821980176]

約数ペア:

[(1, 1821980176), (2, 910990088), (4, 455495044), (8, 227747522), (16, 113873761), (43, 42371632), (86, 21185816), (172, 10592908), (344, 5296454), (688, 2648227)]