28139709

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42443}}^1$

素因数の和:42476

約数の個数: 16

約数和(自身を含む): 42783552

約数和(自身を除く): 14643843

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 42443, 127329, 551759, 721531, 1655277, 2164593, 9379903, 28139709]

約数ペア:

[(1, 28139709), (3, 9379903), (13, 2164593), (17, 1655277), (39, 721531), (51, 551759), (221, 127329), (663, 42443)]