321124293

素因数分解:

$3^2\times 7^2\times {\mathrm{728173}}^1$

素因数の和:728193

約数の個数: 18

約数和(自身を含む): 539576934

約数和(自身を除く): 218452641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 728173, 2184519, 5097211, 6553557, 15291633, 35680477, 45874899, 107041431, 321124293]

約数ペア:

[(1, 321124293), (3, 107041431), (7, 45874899), (9, 35680477), (21, 15291633), (49, 6553557), (63, 5097211), (147, 2184519), (441, 728173)]