20806401

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90071}}^1$

素因数の和:90092

約数の個数: 16

約数和(自身を含む): 34587648

約数和(自身を除く): 13781247

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90071, 270213, 630497, 990781, 1891491, 2972343, 6935467, 20806401]

約数ペア:

[(1, 20806401), (3, 6935467), (7, 2972343), (11, 1891491), (21, 990781), (33, 630497), (77, 270213), (231, 90071)]