19982118

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{256181}}^1$

素因数の和:256199

約数の個数: 16

約数和(自身を含む): 43038576

約数和(自身を除く): 23056458

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 256181, 512362, 768543, 1537086, 3330353, 6660706, 9991059, 19982118]

約数ペア:

[(1, 19982118), (2, 9991059), (3, 6660706), (6, 3330353), (13, 1537086), (26, 768543), (39, 512362), (78, 256181)]