28278423

素因数分解:

$3^3\times {\mathrm{349}}^1\times {\mathrm{3001}}^1$

素因数の和:3359

約数の個数: 16

約数和(自身を含む): 42028000

約数和(自身を除く): 13749577

約数列:

[1, 3, 9, 27, 349, 1047, 3001, 3141, 9003, 9423, 27009, 81027, 1047349, 3142047, 9426141, 28278423]

約数ペア:

[(1, 28278423), (3, 9426141), (9, 3142047), (27, 1047349), (349, 81027), (1047, 27009), (3001, 9423), (3141, 9003)]