208371051

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{30911}}^1$

素因数の和:31031

約数の個数: 24

約数和(自身を含む): 347203584

約数和(自身を除く): 138832533

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 6741, 30911, 92733, 216377, 278199, 649131, 1947393, 3307477, 9922431, 23152339, 29767293, 69457017, 208371051]

約数ペア:

[(1, 208371051), (3, 69457017), (7, 29767293), (9, 23152339), (21, 9922431), (63, 3307477), (107, 1947393), (321, 649131), (749, 278199), (963, 216377), (2247, 92733), (6741, 30911)]