20996668

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68171}}^1$

素因数の和:68193

約数の個数: 24

約数和(自身を含む): 45811584

約数和(自身を除く): 24814916

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68171, 136342, 272684, 477197, 749881, 954394, 1499762, 1908788, 2999524, 5249167, 10498334, 20996668]

約数ペア:

[(1, 20996668), (2, 10498334), (4, 5249167), (7, 2999524), (11, 1908788), (14, 1499762), (22, 954394), (28, 749881), (44, 477197), (77, 272684), (154, 136342), (308, 68171)]