21319505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2083}}^1$

素因数の和:2200

約数の個数: 16

約数和(自身を含む): 27008640

約数和(自身を除く): 5689135

約数列:

[1, 5, 23, 89, 115, 445, 2047, 2083, 10235, 10415, 47909, 185387, 239545, 926935, 4263901, 21319505]

約数ペア:

[(1, 21319505), (5, 4263901), (23, 926935), (89, 239545), (115, 185387), (445, 47909), (2047, 10415), (2083, 10235)]