2018979

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 32

約数和(自身を含む): 3210240

約数和(自身を除く): 1191261

約数列:

[1, 3, 9, 27, 37, 43, 47, 111, 129, 141, 333, 387, 423, 999, 1161, 1269, 1591, 1739, 2021, 4773, 5217, 6063, 14319, 15651, 18189, 42957, 46953, 54567, 74777, 224331, 672993, 2018979]

約数ペア:

[(1, 2018979), (3, 672993), (9, 224331), (27, 74777), (37, 54567), (43, 46953), (47, 42957), (111, 18189), (129, 15651), (141, 14319), (333, 6063), (387, 5217), (423, 4773), (999, 2021), (1161, 1739), (1269, 1591)]