20638449

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4523}}^1$

素因数の和:4558

約数の個数: 24

約数和(自身を含む): 33115680

約数和(自身を除く): 12477231

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4523, 4563, 13569, 40707, 58799, 122121, 176397, 529191, 764387, 1587573, 2293161, 6879483, 20638449]

約数ペア:

[(1, 20638449), (3, 6879483), (9, 2293161), (13, 1587573), (27, 764387), (39, 529191), (117, 176397), (169, 122121), (351, 58799), (507, 40707), (1521, 13569), (4523, 4563)]