208075581

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{25603}}^1$

素因数の和:25662

約数の個数: 32

約数和(自身を含む): 360504320

約数和(自身を除く): 152428739

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127, 25603, 76809, 179221, 230427, 537663, 691281, 1100929, 1612989, 3302787, 4838967, 7706503, 9908361, 23119509, 29725083, 69358527, 208075581]

約数ペア:

[(1, 208075581), (3, 69358527), (7, 29725083), (9, 23119509), (21, 9908361), (27, 7706503), (43, 4838967), (63, 3302787), (129, 1612989), (189, 1100929), (301, 691281), (387, 537663), (903, 230427), (1161, 179221), (2709, 76809), (8127, 25603)]