19869655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7109}}^1$

素因数の和:7170

約数の個数: 16

約数和(自身を含む): 26278560

約数和(自身を除く): 6408905

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7109, 35545, 92417, 305687, 462085, 1528435, 3973931, 19869655]

約数ペア:

[(1, 19869655), (5, 3973931), (13, 1528435), (43, 462085), (65, 305687), (215, 92417), (559, 35545), (2795, 7109)]