21951081

素因数分解:

$3^4\times {\mathrm{457}}^1\times {\mathrm{593}}^1$

素因数の和:1062

約数の個数: 20

約数和(自身を含む): 32918292

約数和(自身を除く): 10967211

約数列:

[1, 3, 9, 27, 81, 457, 593, 1371, 1779, 4113, 5337, 12339, 16011, 37017, 48033, 271001, 813003, 2439009, 7317027, 21951081]

約数ペア:

[(1, 21951081), (3, 7317027), (9, 2439009), (27, 813003), (81, 271001), (457, 48033), (593, 37017), (1371, 16011), (1779, 12339), (4113, 5337)]