257996889

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{2477}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 380382912

約数和(自身を除く): 122386023

約数列:

[1, 3, 9, 71, 163, 213, 489, 639, 1467, 2477, 7431, 11573, 22293, 34719, 104157, 175867, 403751, 527601, 1211253, 1582803, 3633759, 28666321, 85998963, 257996889]

約数ペア:

[(1, 257996889), (3, 85998963), (9, 28666321), (71, 3633759), (163, 1582803), (213, 1211253), (489, 527601), (639, 403751), (1467, 175867), (2477, 104157), (7431, 34719), (11573, 22293)]