19209554

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 37314432

約数和(自身を除く): 18104878

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 169, 182, 299, 322, 338, 353, 598, 706, 1183, 2093, 2366, 2471, 3887, 4186, 4589, 4942, 7774, 8119, 9178, 16238, 27209, 32123, 54418, 56833, 59657, 64246, 105547, 113666, 119314, 211094, 417599, 738829, 835198, 1372111, 1477658, 2744222, 9604777, 19209554]

約数ペア:

[(1, 19209554), (2, 9604777), (7, 2744222), (13, 1477658), (14, 1372111), (23, 835198), (26, 738829), (46, 417599), (91, 211094), (161, 119314), (169, 113666), (182, 105547), (299, 64246), (322, 59657), (338, 56833), (353, 54418), (598, 32123), (706, 27209), (1183, 16238), (2093, 9178), (2366, 8119), (2471, 7774), (3887, 4942), (4186, 4589)]