27931897

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1307}}^1$

素因数の和:1428

約数の個数: 16

約数和(自身を含む): 33149952

約数和(自身を除く): 5218055

約数列:

[1, 7, 43, 71, 301, 497, 1307, 3053, 9149, 21371, 56201, 92797, 393407, 649579, 3990271, 27931897]

約数ペア:

[(1, 27931897), (7, 3990271), (43, 649579), (71, 393407), (301, 92797), (497, 56201), (1307, 21371), (3053, 9149)]