21404103

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19231}}^1$

素因数の和:19294

約数の個数: 16

約数和(自身を含む): 33232896

約数和(自身を除く): 11828793

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19231, 57693, 134617, 403851, 1019243, 3057729, 7134701, 21404103]

約数ペア:

[(1, 21404103), (3, 7134701), (7, 3057729), (21, 1019243), (53, 403851), (159, 134617), (371, 57693), (1113, 19231)]