209613964

素因数分解:

$2^2\times 7^2\times {\mathrm{1069459}}^1$

素因数の和:1069477

約数の個数: 18

約数和(自身を含む): 426714540

約数和(自身を除く): 217100576

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1069459, 2138918, 4277836, 7486213, 14972426, 29944852, 52403491, 104806982, 209613964]

約数ペア:

[(1, 209613964), (2, 104806982), (4, 52403491), (7, 29944852), (14, 14972426), (28, 7486213), (49, 4277836), (98, 2138918), (196, 1069459)]