21839727

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79999}}^1$

素因数の和:80022

約数の個数: 16

約数和(自身を含む): 35840000

約数和(自身を除く): 14000273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 79999, 239997, 559993, 1039987, 1679979, 3119961, 7279909, 21839727]

約数ペア:

[(1, 21839727), (3, 7279909), (7, 3119961), (13, 1679979), (21, 1039987), (39, 559993), (91, 239997), (273, 79999)]