18891765

素因数分解:

$3^3\times 5^1\times {\mathrm{139939}}^1$

素因数の和:139953

約数の個数: 16

約数和(自身を含む): 33585600

約数和(自身を除く): 14693835

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139939, 419817, 699695, 1259451, 2099085, 3778353, 6297255, 18891765]

約数ペア:

[(1, 18891765), (3, 6297255), (5, 3778353), (9, 2099085), (15, 1259451), (27, 699695), (45, 419817), (135, 139939)]