17917767

素因数分解:

$3^4\times 7^1\times {\mathrm{31601}}^1$

素因数の和:31620

約数の個数: 20

約数和(自身を含む): 30590736

約数和(自身を除く): 12672969

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 31601, 94803, 221207, 284409, 663621, 853227, 1990863, 2559681, 5972589, 17917767]

約数ペア:

[(1, 17917767), (3, 5972589), (7, 2559681), (9, 1990863), (21, 853227), (27, 663621), (63, 284409), (81, 221207), (189, 94803), (567, 31601)]