21245367

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49523}}^1$

素因数の和:49550

約数の個数: 16

約数和(自身を含む): 33280128

約数和(自身を除く): 12034761

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49523, 148569, 544753, 643799, 1634259, 1931397, 7081789, 21245367]

約数ペア:

[(1, 21245367), (3, 7081789), (11, 1931397), (13, 1634259), (33, 643799), (39, 544753), (143, 148569), (429, 49523)]