21167727

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{14197}}^1$

素因数の和:14278

約数の個数: 16

約数和(自身を含む): 32712192

約数和(自身を除く): 11544465

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 14197, 42591, 99379, 298137, 1007987, 3023961, 7055909, 21167727]

約数ペア:

[(1, 21167727), (3, 7055909), (7, 3023961), (21, 1007987), (71, 298137), (213, 99379), (497, 42591), (1491, 14197)]