20784491

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6173}}^1$

素因数の和:6230

約数の個数: 16

約数和(自身を含む): 26276544

約数和(自身を除く): 5492053

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 6173, 43211, 80249, 228401, 561743, 1598807, 2969213, 20784491]

約数ペア:

[(1, 20784491), (7, 2969213), (13, 1598807), (37, 561743), (91, 228401), (259, 80249), (481, 43211), (3367, 6173)]