21176215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2069}}^1$

素因数の和:2186

約数の個数: 16

約数和(自身を含む): 26827200

約数和(自身を除く): 5650985

約数列:

[1, 5, 23, 89, 115, 445, 2047, 2069, 10235, 10345, 47587, 184141, 237935, 920705, 4235243, 21176215]

約数ペア:

[(1, 21176215), (5, 4235243), (23, 920705), (89, 237935), (115, 184141), (445, 47587), (2047, 10345), (2069, 10235)]