18990235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{1789}}^1$

素因数の和:1998

約数の個数: 16

約数和(自身を含む): 25002720

約数和(自身を除く): 6012485

約数列:

[1, 5, 11, 55, 193, 965, 1789, 2123, 8945, 10615, 19679, 98395, 345277, 1726385, 3798047, 18990235]

約数ペア:

[(1, 18990235), (5, 3798047), (11, 1726385), (55, 345277), (193, 98395), (965, 19679), (1789, 10615), (2123, 8945)]