21809909

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1307}}^1$

素因数の和:1396

約数の個数: 16

約数和(自身を含む): 25050816

約数和(自身を除く): 3240907

約数列:

[1, 11, 37, 41, 407, 451, 1307, 1517, 14377, 16687, 48359, 53587, 531949, 589457, 1982719, 21809909]

約数ペア:

[(1, 21809909), (11, 1982719), (37, 589457), (41, 531949), (407, 53587), (451, 48359), (1307, 16687), (1517, 14377)]