16720353

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{10993}}^1$

素因数の和:11025

約数の個数: 18

約数和(自身を含む): 26154726

約数和(自身を除く): 9434373

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 10993, 32979, 98937, 142909, 428727, 1286181, 1857817, 5573451, 16720353]

約数ペア:

[(1, 16720353), (3, 5573451), (9, 1857817), (13, 1286181), (39, 428727), (117, 142909), (169, 98937), (507, 32979), (1521, 10993)]