387804571

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1709}}^1$

素因数の和:2155

約数の個数: 24

約数和(自身を含む): 493588080

約数和(自身を除く): 105783509

約数列:

[1, 7, 11, 49, 77, 421, 539, 1709, 2947, 4631, 11963, 18799, 20629, 32417, 83741, 131593, 226919, 719489, 921151, 5036423, 7914379, 35254961, 55400653, 387804571]

約数ペア:

[(1, 387804571), (7, 55400653), (11, 35254961), (49, 7914379), (77, 5036423), (421, 921151), (539, 719489), (1709, 226919), (2947, 131593), (4631, 83741), (11963, 32417), (18799, 20629)]