21228141

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{10903}}^1$

素因数の和:10976

約数の個数: 16

約数和(自身を含む): 31403520

約数和(自身を除く): 10175379

約数列:

[1, 3, 11, 33, 59, 177, 649, 1947, 10903, 32709, 119933, 359799, 643277, 1929831, 7076047, 21228141]

約数ペア:

[(1, 21228141), (3, 7076047), (11, 1929831), (33, 643277), (59, 359799), (177, 119933), (649, 32709), (1947, 10903)]