181997991

素因数分解:

$3^2\times 7^1\times {\mathrm{1171}}^1\times {\mathrm{2467}}^1$

素因数の和:3651

約数の個数: 24

約数和(自身を含む): 300819584

約数和(自身を除く): 118821593

約数列:

[1, 3, 7, 9, 21, 63, 1171, 2467, 3513, 7401, 8197, 10539, 17269, 22203, 24591, 51807, 73773, 155421, 2888857, 8666571, 20221999, 25999713, 60665997, 181997991]

約数ペア:

[(1, 181997991), (3, 60665997), (7, 25999713), (9, 20221999), (21, 8666571), (63, 2888857), (1171, 155421), (2467, 73773), (3513, 51807), (7401, 24591), (8197, 22203), (10539, 17269)]