17998983

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 28089600

約数和(自身を除く): 10090617

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 333, 387, 419, 999, 1161, 1257, 1591, 3771, 4773, 11313, 14319, 15503, 18017, 42957, 46509, 54051, 139527, 162153, 418581, 486459, 666629, 1999887, 5999661, 17998983]

約数ペア:

[(1, 17998983), (3, 5999661), (9, 1999887), (27, 666629), (37, 486459), (43, 418581), (111, 162153), (129, 139527), (333, 54051), (387, 46509), (419, 42957), (999, 18017), (1161, 15503), (1257, 14319), (1591, 11313), (3771, 4773)]