19821807

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{38639}}^1$

素因数の和:38667

約数の個数: 16

約数和(自身を含む): 30912000

約数和(自身を除く): 11090193

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 38639, 115917, 347751, 734141, 1043253, 2202423, 6607269, 19821807]

約数ペア:

[(1, 19821807), (3, 6607269), (9, 2202423), (19, 1043253), (27, 734141), (57, 347751), (171, 115917), (513, 38639)]