30991311

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7159}}^1$

素因数の和:7215

約数の個数: 24

約数和(自身を含む): 49518560

約数和(自身を除く): 18527249

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 7159, 21477, 64431, 93067, 264883, 279201, 794649, 837603, 2383947, 3443479, 10330437, 30991311]

約数ペア:

[(1, 30991311), (3, 10330437), (9, 3443479), (13, 2383947), (37, 837603), (39, 794649), (111, 279201), (117, 264883), (333, 93067), (481, 64431), (1443, 21477), (4329, 7159)]