18973514

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71329}}^1$

素因数の和:71357

約数の個数: 16

約数和(自身を含む): 34238400

約数和(自身を除く): 15264886

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 71329, 142658, 499303, 998606, 1355251, 2710502, 9486757, 18973514]

約数ペア:

[(1, 18973514), (2, 9486757), (7, 2710502), (14, 1355251), (19, 998606), (38, 499303), (133, 142658), (266, 71329)]