81564003

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{43781}}^1$

素因数の和:43816

約数の個数: 20

約数和(自身を含む): 127142928

約数和(自身を除く): 45578925

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 43781, 131343, 394029, 1006963, 1182087, 3020889, 3546261, 9062667, 27188001, 81564003]

約数ペア:

[(1, 81564003), (3, 27188001), (9, 9062667), (23, 3546261), (27, 3020889), (69, 1182087), (81, 1006963), (207, 394029), (621, 131343), (1863, 43781)]