28068039

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{2003}}^1$

素因数の和:2188

約数の個数: 20

約数和(自身を含む): 42192216

約数和(自身を除く): 14124177

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 2003, 4671, 6009, 14013, 18027, 54081, 162243, 346519, 1039557, 3118671, 9356013, 28068039]

約数ペア:

[(1, 28068039), (3, 9356013), (9, 3118671), (27, 1039557), (81, 346519), (173, 162243), (519, 54081), (1557, 18027), (2003, 14013), (4671, 6009)]