21693815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30341}}^1$

素因数の和:30370

約数の個数: 16

約数和(自身を含む): 30584736

約数和(自身を除く): 8890921

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30341, 151705, 333751, 394433, 1668755, 1972165, 4338763, 21693815]

約数ペア:

[(1, 21693815), (5, 4338763), (11, 1972165), (13, 1668755), (55, 394433), (65, 333751), (143, 151705), (715, 30341)]