20418955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{1031}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 26080704

約数和(自身を除く): 5661749

約数列:

[1, 5, 17, 85, 233, 1031, 1165, 3961, 5155, 17527, 19805, 87635, 240223, 1201115, 4083791, 20418955]

約数ペア:

[(1, 20418955), (5, 4083791), (17, 1201115), (85, 240223), (233, 87635), (1031, 19805), (1165, 17527), (3961, 5155)]