211976541

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{26083}}^1$

素因数の和:26142

約数の個数: 32

約数和(自身を含む): 367262720

約数和(自身を除く): 155286179

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127, 26083, 78249, 182581, 234747, 547743, 704241, 1121569, 1643229, 3364707, 4929687, 7850983, 10094121, 23552949, 30282363, 70658847, 211976541]

約数ペア:

[(1, 211976541), (3, 70658847), (7, 30282363), (9, 23552949), (21, 10094121), (27, 7850983), (43, 4929687), (63, 3364707), (129, 1643229), (189, 1121569), (301, 704241), (387, 547743), (903, 234747), (1161, 182581), (2709, 78249), (8127, 26083)]