21530211

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1363

約数の個数: 24

約数和(自身を含む): 32124480

約数和(自身を除く): 10594269

約数列:

[1, 3, 17, 19, 51, 57, 289, 323, 867, 969, 1307, 3921, 5491, 16473, 22219, 24833, 66657, 74499, 377723, 422161, 1133169, 1266483, 7176737, 21530211]

約数ペア:

[(1, 21530211), (3, 7176737), (17, 1266483), (19, 1133169), (51, 422161), (57, 377723), (289, 74499), (323, 66657), (867, 24833), (969, 22219), (1307, 16473), (3921, 5491)]