64768347

素因数分解:

$3^2\times 7^3\times {\mathrm{20981}}^1$

素因数の和:21008

約数の個数: 24

約数和(自身を含む): 109106400

約数和(自身を除く): 44338053

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 20981, 62943, 146867, 188829, 440601, 1028069, 1321803, 3084207, 7196483, 9252621, 21589449, 64768347]

約数ペア:

[(1, 64768347), (3, 21589449), (7, 9252621), (9, 7196483), (21, 3084207), (49, 1321803), (63, 1028069), (147, 440601), (343, 188829), (441, 146867), (1029, 62943), (3087, 20981)]