19908291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{1117}}^1$

素因数の和:1590

約数の個数: 16

約数和(自身を含む): 28674464

約数和(自身を除く): 8766173

約数列:

[1, 3, 13, 39, 457, 1117, 1371, 3351, 5941, 14521, 17823, 43563, 510469, 1531407, 6636097, 19908291]

約数ペア:

[(1, 19908291), (3, 6636097), (13, 1531407), (39, 510469), (457, 43563), (1117, 17823), (1371, 14521), (3351, 5941)]