20510764

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{72221}}^1$

素因数の和:72296

約数の個数: 12

約数和(自身を含む): 36399888

約数和(自身を除く): 15889124

約数列:

[1, 2, 4, 71, 142, 284, 72221, 144442, 288884, 5127691, 10255382, 20510764]

約数ペア:

[(1, 20510764), (2, 10255382), (4, 5127691), (71, 288884), (142, 144442), (284, 72221)]