21609295

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6871}}^1$

素因数の和:6930

約数の個数: 16

約数和(自身を含む): 28202688

約数和(自身を除く): 6593393

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6871, 34355, 116807, 254227, 584035, 1271135, 4321859, 21609295]

約数ペア:

[(1, 21609295), (5, 4321859), (17, 1271135), (37, 584035), (85, 254227), (185, 116807), (629, 34355), (3145, 6871)]