21737889

素因数分解:

$3^4\times {\mathrm{167}}^1\times {\mathrm{1607}}^1$

素因数の和:1786

約数の個数: 20

約数和(自身を含む): 32687424

約数和(自身を除く): 10949535

約数列:

[1, 3, 9, 27, 81, 167, 501, 1503, 1607, 4509, 4821, 13527, 14463, 43389, 130167, 268369, 805107, 2415321, 7245963, 21737889]

約数ペア:

[(1, 21737889), (3, 7245963), (9, 2415321), (27, 805107), (81, 268369), (167, 130167), (501, 43389), (1503, 14463), (1607, 13527), (4509, 4821)]