20006021

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{397}}^1$

素因数の和:740

約数の個数: 16

約数和(自身を含む): 23994624

約数和(自身を除く): 3988603

約数列:

[1, 7, 23, 161, 313, 397, 2191, 2779, 7199, 9131, 50393, 63917, 124261, 869827, 2858003, 20006021]

約数ペア:

[(1, 20006021), (7, 2858003), (23, 869827), (161, 124261), (313, 63917), (397, 50393), (2191, 9131), (2779, 7199)]