16986985

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 20995200

約数和(自身を除く): 4008215

約数列:

[1, 5, 59, 89, 295, 445, 647, 3235, 5251, 26255, 38173, 57583, 190865, 287915, 3397397, 16986985]

約数ペア:

[(1, 16986985), (5, 3397397), (59, 287915), (89, 190865), (295, 57583), (445, 38173), (647, 26255), (3235, 5251)]