20812495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{1667}}^1$

素因数の和:1910

約数の個数: 16

約数和(自身を含む): 27381888

約数和(自身を除く): 6569393

約数列:

[1, 5, 11, 55, 227, 1135, 1667, 2497, 8335, 12485, 18337, 91685, 378409, 1892045, 4162499, 20812495]

約数ペア:

[(1, 20812495), (5, 4162499), (11, 1892045), (55, 378409), (227, 91685), (1135, 18337), (1667, 12485), (2497, 8335)]