21540267

素因数分解:

$3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1889}}^1$

素因数の和:2083

約数の個数: 24

約数和(自身を含む): 35773920

約数和(自身を除く): 14233653

約数列:

[1, 3, 7, 9, 21, 63, 181, 543, 1267, 1629, 1889, 3801, 5667, 11403, 13223, 17001, 39669, 119007, 341909, 1025727, 2393363, 3077181, 7180089, 21540267]

約数ペア:

[(1, 21540267), (3, 7180089), (7, 3077181), (9, 2393363), (21, 1025727), (63, 341909), (181, 119007), (543, 39669), (1267, 17001), (1629, 13223), (1889, 11403), (3801, 5667)]