221354497

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{56569}}^1$

素因数の和:56632

約数の個数: 16

約数和(自身を含む): 278776960

約数和(自身を除く): 57422463

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 56569, 395983, 735397, 2432467, 5147779, 17027269, 31622071, 221354497]

約数ペア:

[(1, 221354497), (7, 31622071), (13, 17027269), (43, 5147779), (91, 2432467), (301, 735397), (559, 395983), (3913, 56569)]