217355841

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 337296960

約数和(自身を除く): 119941119

約数列:

[1, 3, 9, 29, 43, 87, 107, 129, 181, 261, 321, 387, 543, 963, 1247, 1629, 3103, 3741, 4601, 5249, 7783, 9309, 11223, 13803, 15747, 19367, 23349, 27927, 41409, 47241, 58101, 70047, 133429, 174303, 225707, 400287, 561643, 677121, 832781, 1200861, 1684929, 2031363, 2498343, 5054787, 7495029, 24150649, 72451947, 217355841]

約数ペア:

[(1, 217355841), (3, 72451947), (9, 24150649), (29, 7495029), (43, 5054787), (87, 2498343), (107, 2031363), (129, 1684929), (181, 1200861), (261, 832781), (321, 677121), (387, 561643), (543, 400287), (963, 225707), (1247, 174303), (1629, 133429), (3103, 70047), (3741, 58101), (4601, 47241), (5249, 41409), (7783, 27927), (9309, 23349), (11223, 19367), (13803, 15747)]