81578476

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{153343}}^1$

素因数の和:153373

約数の個数: 24

約数和(自身を含む): 171745280

約数和(自身を除く): 90166804

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 153343, 306686, 613372, 1073401, 2146802, 2913517, 4293604, 5827034, 11654068, 20394619, 40789238, 81578476]

約数ペア:

[(1, 81578476), (2, 40789238), (4, 20394619), (7, 11654068), (14, 5827034), (19, 4293604), (28, 2913517), (38, 2146802), (76, 1073401), (133, 613372), (266, 306686), (532, 153343)]