16988185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 23207040

約数和(自身を除く): 6218855

約数列:

[1, 5, 17, 19, 67, 85, 95, 157, 323, 335, 785, 1139, 1273, 1615, 2669, 2983, 5695, 6365, 10519, 13345, 14915, 21641, 50711, 52595, 108205, 178823, 199861, 253555, 894115, 999305, 3397637, 16988185]

約数ペア:

[(1, 16988185), (5, 3397637), (17, 999305), (19, 894115), (67, 253555), (85, 199861), (95, 178823), (157, 108205), (323, 52595), (335, 50711), (785, 21641), (1139, 14915), (1273, 13345), (1615, 10519), (2669, 6365), (2983, 5695)]