20528970836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42415229}}^1$

素因数の和:42415255

約数の個数: 18

約数和(自身を含む): 39488579130

約数和(自身を除く): 18959608294

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42415229, 84830458, 169660916, 466567519, 933135038, 1866270076, 5132242709, 10264485418, 20528970836]

約数ペア:

[(1, 20528970836), (2, 10264485418), (4, 5132242709), (11, 1866270076), (22, 933135038), (44, 466567519), (121, 169660916), (242, 84830458), (484, 42415229)]