217156959

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 337896000

約数和(自身を除く): 120739041

約数列:

[1, 3, 9, 29, 37, 87, 111, 113, 199, 261, 333, 339, 597, 1017, 1073, 1791, 3219, 3277, 4181, 5771, 7363, 9657, 9831, 12543, 17313, 22089, 22487, 29493, 37629, 51939, 66267, 67461, 121249, 202383, 213527, 363747, 640581, 652123, 832019, 1091241, 1921743, 1956369, 2496057, 5869107, 7488171, 24128551, 72385653, 217156959]

約数ペア:

[(1, 217156959), (3, 72385653), (9, 24128551), (29, 7488171), (37, 5869107), (87, 2496057), (111, 1956369), (113, 1921743), (199, 1091241), (261, 832019), (333, 652123), (339, 640581), (597, 363747), (1017, 213527), (1073, 202383), (1791, 121249), (3219, 67461), (3277, 66267), (4181, 51939), (5771, 37629), (7363, 29493), (9657, 22487), (9831, 22089), (12543, 17313)]