20383972

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1307}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 40872384

約数和(自身を除く): 20488412

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1307, 2228, 2614, 3899, 5228, 7798, 9149, 15596, 18298, 36596, 727999, 1455998, 2911996, 5095993, 10191986, 20383972]

約数ペア:

[(1, 20383972), (2, 10191986), (4, 5095993), (7, 2911996), (14, 1455998), (28, 727999), (557, 36596), (1114, 18298), (1307, 15596), (2228, 9149), (2614, 7798), (3899, 5228)]