21591724

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6373}}^1$

素因数の和:6406

約数の個数: 36

約数和(自身を含む): 47473552

約数和(自身を除く): 25881828

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6373, 12746, 25492, 44611, 70103, 89222, 140206, 178444, 280412, 490721, 771133, 981442, 1542266, 1962884, 3084532, 5397931, 10795862, 21591724]

約数ペア:

[(1, 21591724), (2, 10795862), (4, 5397931), (7, 3084532), (11, 1962884), (14, 1542266), (22, 981442), (28, 771133), (44, 490721), (77, 280412), (121, 178444), (154, 140206), (242, 89222), (308, 70103), (484, 44611), (847, 25492), (1694, 12746), (3388, 6373)]