19178217

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 28458248

約数和(自身を除く): 9280031

約数列:

[1, 3, 9, 61, 181, 183, 193, 543, 549, 579, 1629, 1737, 11041, 11773, 33123, 34933, 35319, 99369, 104799, 105957, 314397, 2130913, 6392739, 19178217]

約数ペア:

[(1, 19178217), (3, 6392739), (9, 2130913), (61, 314397), (181, 105957), (183, 104799), (193, 99369), (543, 35319), (549, 34933), (579, 33123), (1629, 11773), (1737, 11041)]