21725409

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1759}}^1$

素因数の和:1964

約数の個数: 16

約数和(自身を含む): 30412800

約数和(自身を除く): 8687391

約数列:

[1, 3, 23, 69, 179, 537, 1759, 4117, 5277, 12351, 40457, 121371, 314861, 944583, 7241803, 21725409]

約数ペア:

[(1, 21725409), (3, 7241803), (23, 944583), (69, 314861), (179, 121371), (537, 40457), (1759, 12351), (4117, 5277)]