21232945

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 25966080

約数和(自身を除く): 4733135

約数列:

[1, 5, 137, 139, 223, 685, 695, 1115, 19043, 30551, 30997, 95215, 152755, 154985, 4246589, 21232945]

約数ペア:

[(1, 21232945), (5, 4246589), (137, 154985), (139, 152755), (223, 95215), (685, 30997), (695, 30551), (1115, 19043)]