21130269

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{1307}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 29947968

約数和(自身を除く): 8817699

約数列:

[1, 3, 17, 51, 317, 951, 1307, 3921, 5389, 16167, 22219, 66657, 414319, 1242957, 7043423, 21130269]

約数ペア:

[(1, 21130269), (3, 7043423), (17, 1242957), (51, 414319), (317, 66657), (951, 22219), (1307, 16167), (3921, 5389)]