21282321

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{2437}}^1$

素因数の和:2552

約数の個数: 16

約数和(自身を含む): 29490048

約数和(自身を除く): 8207727

約数列:

[1, 3, 41, 71, 123, 213, 2437, 2911, 7311, 8733, 99917, 173027, 299751, 519081, 7094107, 21282321]

約数ペア:

[(1, 21282321), (3, 7094107), (41, 519081), (71, 299751), (123, 173027), (213, 99917), (2437, 8733), (2911, 7311)]