12991563

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37013}}^1$

素因数の和:37035

約数の個数: 16

約数和(自身を含む): 20727840

約数和(自身を除く): 7736277

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 37013, 111039, 333117, 481169, 999351, 1443507, 4330521, 12991563]

約数ペア:

[(1, 12991563), (3, 4330521), (9, 1443507), (13, 999351), (27, 481169), (39, 333117), (117, 111039), (351, 37013)]