21083727

素因数分解:

$3^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1381}}^1$

素因数の和:2118

約数の個数: 16

約数和(自身を含む): 32195072

約数和(自身を除く): 11111345

約数列:

[1, 3, 7, 21, 727, 1381, 2181, 4143, 5089, 9667, 15267, 29001, 1003987, 3011961, 7027909, 21083727]

約数ペア:

[(1, 21083727), (3, 7027909), (7, 3011961), (21, 1003987), (727, 29001), (1381, 15267), (2181, 9667), (4143, 5089)]