18966231

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{5711}}^1$

素因数の和:5764

約数の個数: 20

約数和(自身を含む): 29028384

約数和(自身を除く): 10062153

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 5711, 17133, 51399, 154197, 234151, 462591, 702453, 2107359, 6322077, 18966231]

約数ペア:

[(1, 18966231), (3, 6322077), (9, 2107359), (27, 702453), (41, 462591), (81, 234151), (123, 154197), (369, 51399), (1107, 17133), (3321, 5711)]