218917863

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{419}}^1\times {\mathrm{523}}^1$

素因数の和:988

約数の個数: 32

約数和(自身を含む): 334521600

約数和(自身を除く): 115603737

約数列:

[1, 3, 9, 27, 37, 111, 333, 419, 523, 999, 1257, 1569, 3771, 4707, 11313, 14121, 15503, 19351, 46509, 58053, 139527, 174159, 219137, 418581, 522477, 657411, 1972233, 5916699, 8108069, 24324207, 72972621, 218917863]

約数ペア:

[(1, 218917863), (3, 72972621), (9, 24324207), (27, 8108069), (37, 5916699), (111, 1972233), (333, 657411), (419, 522477), (523, 418581), (999, 219137), (1257, 174159), (1569, 139527), (3771, 58053), (4707, 46509), (11313, 19351), (14121, 15503)]