19855005

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8431}}^1$

素因数の和:8596

約数の個数: 16

約数和(自身を含む): 31974144

約数和(自身を除く): 12119139

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 8431, 25293, 42155, 126465, 1323667, 3971001, 6618335, 19855005]

約数ペア:

[(1, 19855005), (3, 6618335), (5, 3971001), (15, 1323667), (157, 126465), (471, 42155), (785, 25293), (2355, 8431)]