20028411

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1327}}^1$

素因数の和:1392

約数の個数: 32

約数和(自身を含む): 32721920

約数和(自身を除く): 12693509

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1327, 1677, 3981, 5031, 11943, 15093, 17251, 35829, 51753, 57061, 155259, 171183, 465777, 513549, 741793, 1540647, 2225379, 6676137, 20028411]

約数ペア:

[(1, 20028411), (3, 6676137), (9, 2225379), (13, 1540647), (27, 741793), (39, 513549), (43, 465777), (117, 171183), (129, 155259), (351, 57061), (387, 51753), (559, 35829), (1161, 17251), (1327, 15093), (1677, 11943), (3981, 5031)]