18658161

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9733}}^1$

素因数の和:9813

約数の個数: 16

約数和(自身を含む): 28033920

約数和(自身を除く): 9375759

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9733, 29199, 87597, 262791, 691043, 2073129, 6219387, 18658161]

約数ペア:

[(1, 18658161), (3, 6219387), (9, 2073129), (27, 691043), (71, 262791), (213, 87597), (639, 29199), (1917, 9733)]