21141357

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{881}}^1$

素因数の和:1324

約数の個数: 16

約数和(自身を含む): 29776320

約数和(自身を除く): 8634963

約数列:

[1, 3, 19, 57, 421, 881, 1263, 2643, 7999, 16739, 23997, 50217, 370901, 1112703, 7047119, 21141357]

約数ペア:

[(1, 21141357), (3, 7047119), (19, 1112703), (57, 370901), (421, 50217), (881, 23997), (1263, 16739), (2643, 7999)]