20904939

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1193}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 34387200

約数和(自身を除く): 13482261

約数列:

[1, 3, 9, 11, 27, 33, 59, 99, 177, 297, 531, 649, 1193, 1593, 1947, 3579, 5841, 10737, 13123, 17523, 32211, 39369, 70387, 118107, 211161, 354321, 633483, 774257, 1900449, 2322771, 6968313, 20904939]

約数ペア:

[(1, 20904939), (3, 6968313), (9, 2322771), (11, 1900449), (27, 774257), (33, 633483), (59, 354321), (99, 211161), (177, 118107), (297, 70387), (531, 39369), (649, 32211), (1193, 17523), (1593, 13123), (1947, 10737), (3579, 5841)]