21807753

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{38873}}^1$

素因数の和:38904

約数の個数: 16

約数和(自身を含む): 33587136

約数和(自身を除く): 11779383

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 38873, 116619, 427603, 660841, 1282809, 1982523, 7269251, 21807753]

約数ペア:

[(1, 21807753), (3, 7269251), (11, 1982523), (17, 1282809), (33, 660841), (51, 427603), (187, 116619), (561, 38873)]