19968609

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{1117}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 27368640

約数和(自身を除く): 7400031

約数列:

[1, 3, 59, 101, 177, 303, 1117, 3351, 5959, 17877, 65903, 112817, 197709, 338451, 6656203, 19968609]

約数ペア:

[(1, 19968609), (3, 6656203), (59, 338451), (101, 197709), (177, 112817), (303, 65903), (1117, 17877), (3351, 5959)]