20778604

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6133}}^1$

素因数の和:6166

約数の個数: 36

約数和(自身を含む): 45686032

約数和(自身を除く): 24907428

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6133, 12266, 24532, 42931, 67463, 85862, 134926, 171724, 269852, 472241, 742093, 944482, 1484186, 1888964, 2968372, 5194651, 10389302, 20778604]

約数ペア:

[(1, 20778604), (2, 10389302), (4, 5194651), (7, 2968372), (11, 1888964), (14, 1484186), (22, 944482), (28, 742093), (44, 472241), (77, 269852), (121, 171724), (154, 134926), (242, 85862), (308, 67463), (484, 42931), (847, 24532), (1694, 12266), (3388, 6133)]