19112005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{18289}}^1$

素因数の和:18324

約数の個数: 16

約数和(自身を含む): 26337600

約数和(自身を除く): 7225595

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 18289, 91445, 201179, 347491, 1005895, 1737455, 3822401, 19112005]

約数ペア:

[(1, 19112005), (5, 3822401), (11, 1737455), (19, 1005895), (55, 347491), (95, 201179), (209, 91445), (1045, 18289)]