28172859

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3863}}^1$

素因数の和:3907

約数の個数: 32

約数和(自身を含む): 46738944

約数和(自身を除く): 18566085

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 3863, 7293, 11589, 42493, 50219, 65671, 127479, 150657, 197013, 552409, 722381, 853723, 1657227, 2167143, 2561169, 9390953, 28172859]

約数ペア:

[(1, 28172859), (3, 9390953), (11, 2561169), (13, 2167143), (17, 1657227), (33, 853723), (39, 722381), (51, 552409), (143, 197013), (187, 150657), (221, 127479), (429, 65671), (561, 50219), (663, 42493), (2431, 11589), (3863, 7293)]