259609987

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3739}}^1$

素因数の和:3875

約数の個数: 24

約数和(自身を含む): 328297200

約数和(自身を除く): 68687213

約数列:

[1, 7, 13, 49, 91, 109, 637, 763, 1417, 3739, 5341, 9919, 26173, 48607, 69433, 183211, 340249, 407551, 2381743, 2852857, 5298163, 19969999, 37087141, 259609987]

約数ペア:

[(1, 259609987), (7, 37087141), (13, 19969999), (49, 5298163), (91, 2852857), (109, 2381743), (637, 407551), (763, 340249), (1417, 183211), (3739, 69433), (5341, 48607), (9919, 26173)]