19821868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4133}}^1$

素因数の和:4257

約数の個数: 24

約数和(自身を含む): 38198160

約数和(自身を除く): 18376292

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4133, 4796, 8266, 16532, 45463, 90926, 181852, 450497, 900994, 1801988, 4955467, 9910934, 19821868]

約数ペア:

[(1, 19821868), (2, 9910934), (4, 4955467), (11, 1801988), (22, 900994), (44, 450497), (109, 181852), (218, 90926), (436, 45463), (1199, 16532), (2398, 8266), (4133, 4796)]