81253564

素因数分解:

$2^2\times 7^2\times {\mathrm{414559}}^1$

素因数の和:414577

約数の個数: 18

約数和(自身を含む): 165409440

約数和(自身を除く): 84155876

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 414559, 829118, 1658236, 2901913, 5803826, 11607652, 20313391, 40626782, 81253564]

約数ペア:

[(1, 81253564), (2, 40626782), (4, 20313391), (7, 11607652), (14, 5803826), (28, 2901913), (49, 1658236), (98, 829118), (196, 414559)]