16820008

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{19289}}^1$

素因数の和:19404

約数の個数: 16

約数和(自身を含む): 31828500

約数和(自身を除く): 15008492

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 19289, 38578, 77156, 154312, 2102501, 4205002, 8410004, 16820008]

約数ペア:

[(1, 16820008), (2, 8410004), (4, 4205002), (8, 2102501), (109, 154312), (218, 77156), (436, 38578), (872, 19289)]