19393759

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{3271}}^1$

素因数の和:3307

約数の個数: 18

約数和(自身を含む): 24805032

約数和(自身を除く): 5411273

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 3271, 5929, 22897, 35981, 160279, 251867, 395791, 1763069, 2770537, 19393759]

約数ペア:

[(1, 19393759), (7, 2770537), (11, 1763069), (49, 395791), (77, 251867), (121, 160279), (539, 35981), (847, 22897), (3271, 5929)]