1287817707

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{1373}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 1921049856

約数和(自身を除く): 633232149

約数列:

[1, 3, 11, 33, 43, 129, 473, 661, 1373, 1419, 1983, 4119, 7271, 15103, 21813, 28423, 45309, 59039, 85269, 177117, 312653, 649429, 907553, 937959, 1948287, 2722659, 9983083, 29949249, 39024779, 117074337, 429272569, 1287817707]

約数ペア:

[(1, 1287817707), (3, 429272569), (11, 117074337), (33, 39024779), (43, 29949249), (129, 9983083), (473, 2722659), (661, 1948287), (1373, 937959), (1419, 907553), (1983, 649429), (4119, 312653), (7271, 177117), (15103, 85269), (21813, 59039), (28423, 45309)]