28229103

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6311}}^1$

素因数の和:6395

約数の個数: 24

約数和(自身を含む): 47264256

約数和(自身を除く): 19035153

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 6311, 18933, 44177, 56799, 132531, 397593, 448081, 1344243, 3136567, 4032729, 9409701, 28229103]

約数ペア:

[(1, 28229103), (3, 9409701), (7, 4032729), (9, 3136567), (21, 1344243), (63, 448081), (71, 397593), (213, 132531), (497, 56799), (639, 44177), (1491, 18933), (4473, 6311)]