21993188

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{5003}}^1$

素因数の和:5171

約数の個数: 24

約数和(自身を含む): 44275392

約数和(自身を除く): 22282204

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 5003, 10006, 20012, 35021, 70042, 140084, 785471, 1570942, 3141884, 5498297, 10996594, 21993188]

約数ペア:

[(1, 21993188), (2, 10996594), (4, 5498297), (7, 3141884), (14, 1570942), (28, 785471), (157, 140084), (314, 70042), (628, 35021), (1099, 20012), (2198, 10006), (4396, 5003)]