21236313

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{14243}}^1$

素因数の和:14324

約数の個数: 16

約数和(自身を含む): 32818176

約数和(自身を除く): 11581863

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 14243, 42729, 99701, 299103, 1011253, 3033759, 7078771, 21236313]

約数ペア:

[(1, 21236313), (3, 7078771), (7, 3033759), (21, 1011253), (71, 299103), (213, 99701), (497, 42729), (1491, 14243)]