218639729

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{547}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 284083200

約数和(自身を除く): 65443471

約数列:

[1, 7, 11, 29, 77, 179, 203, 319, 547, 1253, 1969, 2233, 3829, 5191, 6017, 13783, 15863, 36337, 42119, 57101, 97913, 111041, 174493, 399707, 685391, 1077043, 1221451, 2839477, 7539301, 19876339, 31234247, 218639729]

約数ペア:

[(1, 218639729), (7, 31234247), (11, 19876339), (29, 7539301), (77, 2839477), (179, 1221451), (203, 1077043), (319, 685391), (547, 399707), (1253, 174493), (1969, 111041), (2233, 97913), (3829, 57101), (5191, 42119), (6017, 36337), (13783, 15863)]