287777007

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{16981}}^1$

素因数の和:17263

約数の個数: 24

約数和(自身を含む): 476854560

約数和(自身を除く): 189077553

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1883, 2421, 5649, 16947, 16981, 50943, 118867, 152829, 356601, 1069803, 4567889, 13703667, 31975223, 41111001, 95925669, 287777007]

約数ペア:

[(1, 287777007), (3, 95925669), (7, 41111001), (9, 31975223), (21, 13703667), (63, 4567889), (269, 1069803), (807, 356601), (1883, 152829), (2421, 118867), (5649, 50943), (16947, 16981)]