201727953

素因数分解:

$3^2\times 7^2\times {\mathrm{457433}}^1$

素因数の和:457453

約数の個数: 18

約数和(自身を含む): 338958594

約数和(自身を除く): 137230641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 457433, 1372299, 3202031, 4116897, 9606093, 22414217, 28818279, 67242651, 201727953]

約数ペア:

[(1, 201727953), (3, 67242651), (7, 28818279), (9, 22414217), (21, 9606093), (49, 4116897), (63, 3202031), (147, 1372299), (441, 457433)]