19102391

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1235

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 6178249

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1187, 1463, 2299, 8309, 13057, 16093, 22553, 91399, 143627, 157871, 248083, 1005389, 1736581, 2728913, 19102391]

約数ペア:

[(1, 19102391), (7, 2728913), (11, 1736581), (19, 1005389), (77, 248083), (121, 157871), (133, 143627), (209, 91399), (847, 22553), (1187, 16093), (1463, 13057), (2299, 8309)]