19307821

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 21584304

約数和(自身を除く): 2276483

約数列:

[1, 13, 37, 137, 293, 481, 1781, 3809, 5069, 10841, 40141, 65897, 140933, 521833, 1485217, 19307821]

約数ペア:

[(1, 19307821), (13, 1485217), (37, 521833), (137, 140933), (293, 65897), (481, 40141), (1781, 10841), (3809, 5069)]