20189007

素因数分解:

$3^4\times {\mathrm{281}}^1\times {\mathrm{887}}^1$

素因数の和:1180

約数の個数: 20

約数和(自身を含む): 30300336

約数和(自身を除く): 10111329

約数列:

[1, 3, 9, 27, 81, 281, 843, 887, 2529, 2661, 7587, 7983, 22761, 23949, 71847, 249247, 747741, 2243223, 6729669, 20189007]

約数ペア:

[(1, 20189007), (3, 6729669), (9, 2243223), (27, 747741), (81, 249247), (281, 71847), (843, 23949), (887, 22761), (2529, 7983), (2661, 7587)]