16920235

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:950

約数の個数: 16

約数和(自身を含む): 20995200

約数和(自身を除く): 4074965

約数列:

[1, 5, 47, 89, 235, 445, 809, 4045, 4183, 20915, 38023, 72001, 190115, 360005, 3384047, 16920235]

約数ペア:

[(1, 16920235), (5, 3384047), (47, 360005), (89, 190115), (235, 72001), (445, 38023), (809, 20915), (4045, 4183)]