21089365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{1249}}^1$

素因数の和:1572

約数の個数: 16

約数和(自身を含む): 27720000

約数和(自身を除く): 6630635

約数列:

[1, 5, 11, 55, 307, 1249, 1535, 3377, 6245, 13739, 16885, 68695, 383443, 1917215, 4217873, 21089365]

約数ペア:

[(1, 21089365), (5, 4217873), (11, 1917215), (55, 383443), (307, 68695), (1249, 16885), (1535, 13739), (3377, 6245)]