21184724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11197}}^1$

素因数の和:11255

約数の個数: 24

約数和(自身を含む): 41387808

約数和(自身を除く): 20203084

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11197, 22394, 44788, 123167, 246334, 481471, 492668, 962942, 1925884, 5296181, 10592362, 21184724]

約数ペア:

[(1, 21184724), (2, 10592362), (4, 5296181), (11, 1925884), (22, 962942), (43, 492668), (44, 481471), (86, 246334), (172, 123167), (473, 44788), (946, 22394), (1892, 11197)]