21683187

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{11311}}^1$

素因数の和:11391

約数の個数: 16

約数和(自身を含む): 32578560

約数和(自身を除く): 10895373

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 11311, 33933, 101799, 305397, 803081, 2409243, 7227729, 21683187]

約数ペア:

[(1, 21683187), (3, 7227729), (9, 2409243), (27, 803081), (71, 305397), (213, 101799), (639, 33933), (1917, 11311)]