19520809

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 25833920

約数和(自身を除く): 6313111

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1213, 1463, 2299, 8491, 13343, 16093, 23047, 93401, 146773, 161329, 253517, 1027411, 1774619, 2788687, 19520809]

約数ペア:

[(1, 19520809), (7, 2788687), (11, 1774619), (19, 1027411), (77, 253517), (121, 161329), (133, 146773), (209, 93401), (847, 23047), (1213, 16093), (1463, 13343), (2299, 8491)]