21887195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{8467}}^1$

素因数の和:8530

約数の個数: 16

約数和(自身を含む): 29265408

約数和(自身を除く): 7378213

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 8467, 42335, 93137, 397949, 465685, 1989745, 4377439, 21887195]

約数ペア:

[(1, 21887195), (5, 4377439), (11, 1989745), (47, 465685), (55, 397949), (235, 93137), (517, 42335), (2585, 8467)]