278340777

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19661}}^1$

素因数の和:19702

約数の個数: 36

約数和(自身を含む): 475938372

約数和(自身を除く): 197597595

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1573, 4719, 14157, 19661, 58983, 176949, 216271, 255593, 648813, 766779, 1946439, 2300337, 2378981, 2811523, 7136943, 8434569, 21410829, 25303707, 30926753, 92780259, 278340777]

約数ペア:

[(1, 278340777), (3, 92780259), (9, 30926753), (11, 25303707), (13, 21410829), (33, 8434569), (39, 7136943), (99, 2811523), (117, 2378981), (121, 2300337), (143, 1946439), (363, 766779), (429, 648813), (1089, 255593), (1287, 216271), (1573, 176949), (4719, 58983), (14157, 19661)]