1399881

素因数分解:

$3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 2216160

約数和(自身を除く): 816279

約数列:

[1, 3, 7, 21, 49, 89, 107, 147, 267, 321, 623, 749, 1869, 2247, 4361, 5243, 9523, 13083, 15729, 28569, 66661, 199983, 466627, 1399881]

約数ペア:

[(1, 1399881), (3, 466627), (7, 199983), (21, 66661), (49, 28569), (89, 15729), (107, 13083), (147, 9523), (267, 5243), (321, 4361), (623, 2247), (749, 1869)]