19297863

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8681}}^1$

素因数の和:8719

約数の個数: 24

約数和(自身を含む): 31602480

約数和(自身を除く): 12304617

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 8681, 26043, 78129, 112853, 164939, 338559, 494817, 1015677, 1484451, 2144207, 6432621, 19297863]

約数ペア:

[(1, 19297863), (3, 6432621), (9, 2144207), (13, 1484451), (19, 1015677), (39, 494817), (57, 338559), (117, 164939), (171, 112853), (247, 78129), (741, 26043), (2223, 8681)]