639779877

素因数分解:

$3^6\times {\mathrm{11}}^2\times {\mathrm{7253}}^1$

素因数の和:7293

約数の個数: 42

約数和(自身を含む): 1054506726

約数和(自身を除く): 414726849

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 121, 243, 297, 363, 729, 891, 1089, 2673, 3267, 7253, 8019, 9801, 21759, 29403, 65277, 79783, 88209, 195831, 239349, 587493, 718047, 877613, 1762479, 2154141, 2632839, 5287437, 6462423, 7898517, 19387269, 23695551, 58161807, 71086653, 213259959, 639779877]

約数ペア:

[(1, 639779877), (3, 213259959), (9, 71086653), (11, 58161807), (27, 23695551), (33, 19387269), (81, 7898517), (99, 6462423), (121, 5287437), (243, 2632839), (297, 2154141), (363, 1762479), (729, 877613), (891, 718047), (1089, 587493), (2673, 239349), (3267, 195831), (7253, 88209), (8019, 79783), (9801, 65277), (21759, 29403)]