1868321

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:453

約数の個数: 16

約数和(自身を含む): 2352000

約数和(自身を除く): 483679

約数列:

[1, 7, 13, 49, 91, 343, 419, 637, 2933, 4459, 5447, 20531, 38129, 143717, 266903, 1868321]

約数ペア:

[(1, 1868321), (7, 266903), (13, 143717), (49, 38129), (91, 20531), (343, 5447), (419, 4459), (637, 2933)]