19731539

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:418

約数の個数: 16

約数和(自身を含む): 21441024

約数和(自身を除く): 1709485

約数列:

[1, 23, 43, 71, 281, 989, 1633, 3053, 6463, 12083, 19951, 70219, 277909, 458873, 857893, 19731539]

約数ペア:

[(1, 19731539), (23, 857893), (43, 458873), (71, 277909), (281, 70219), (989, 19951), (1633, 12083), (3053, 6463)]