21092751

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{11003}}^1$

素因数の和:11083

約数の個数: 16

約数和(自身を含む): 31691520

約数和(自身を除く): 10598769

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 11003, 33009, 99027, 297081, 781213, 2343639, 7030917, 21092751]

約数ペア:

[(1, 21092751), (3, 7030917), (9, 2343639), (27, 781213), (71, 297081), (213, 99027), (639, 33009), (1917, 11003)]