208676721

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 324434880

約数和(自身を除く): 115758159

約数列:

[1, 3, 11, 29, 33, 43, 87, 121, 129, 319, 363, 461, 473, 957, 1247, 1383, 1419, 3509, 3741, 5071, 5203, 10527, 13369, 13717, 15213, 15609, 19823, 40107, 41151, 55781, 59469, 147059, 150887, 167343, 218053, 441177, 452661, 574867, 654159, 1617649, 1724601, 2398583, 4852947, 6323537, 7195749, 18970611, 69558907, 208676721]

約数ペア:

[(1, 208676721), (3, 69558907), (11, 18970611), (29, 7195749), (33, 6323537), (43, 4852947), (87, 2398583), (121, 1724601), (129, 1617649), (319, 654159), (363, 574867), (461, 452661), (473, 441177), (957, 218053), (1247, 167343), (1383, 150887), (1419, 147059), (3509, 59469), (3741, 55781), (5071, 41151), (5203, 40107), (10527, 19823), (13369, 15609), (13717, 15213)]