21697136

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{3089}}^1$

素因数の和:3536

約数の個数: 20

約数和(自身を含む): 42147600

約数和(自身を除く): 20450464

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 3089, 3512, 6178, 7024, 12356, 24712, 49424, 1356071, 2712142, 5424284, 10848568, 21697136]

約数ペア:

[(1, 21697136), (2, 10848568), (4, 5424284), (8, 2712142), (16, 1356071), (439, 49424), (878, 24712), (1756, 12356), (3089, 7024), (3512, 6178)]