19180863

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2309}}^1$

素因数の和:2399

約数の個数: 24

約数和(自身を含む): 30270240

約数和(自身を除く): 11089377

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2309, 2769, 6927, 8307, 20781, 30017, 90051, 163939, 270153, 491817, 1475451, 2131207, 6393621, 19180863]

約数ペア:

[(1, 19180863), (3, 6393621), (9, 2131207), (13, 1475451), (39, 491817), (71, 270153), (117, 163939), (213, 90051), (639, 30017), (923, 20781), (2309, 8307), (2769, 6927)]