19809566

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{17911}}^1$

素因数の和:17999

約数の個数: 16

約数和(自身を含む): 34391040

約数和(自身を除く): 14581474

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 17911, 35822, 125377, 250754, 1414969, 2829938, 9904783, 19809566]

約数ペア:

[(1, 19809566), (2, 9904783), (7, 2829938), (14, 1414969), (79, 250754), (158, 125377), (553, 35822), (1106, 17911)]