678989817

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{7351}}^1$

素因数の和:7682

約数の個数: 32

約数和(自身を含む): 1101035520

約数和(自身を除く): 422045703

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 311, 933, 2799, 3421, 7351, 8397, 10263, 22053, 30789, 66159, 80861, 92367, 198477, 242583, 727749, 2183247, 2286161, 6858483, 20575449, 25147771, 61726347, 75443313, 226329939, 678989817]

約数ペア:

[(1, 678989817), (3, 226329939), (9, 75443313), (11, 61726347), (27, 25147771), (33, 20575449), (99, 6858483), (297, 2286161), (311, 2183247), (933, 727749), (2799, 242583), (3421, 198477), (7351, 92367), (8397, 80861), (10263, 66159), (22053, 30789)]