20407408

素因数分解:

$2^4\times 7^1\times {\mathrm{182209}}^1$

素因数の和:182224

約数の個数: 20

約数和(自身を含む): 45188080

約数和(自身を除く): 24780672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 182209, 364418, 728836, 1275463, 1457672, 2550926, 2915344, 5101852, 10203704, 20407408]

約数ペア:

[(1, 20407408), (2, 10203704), (4, 5101852), (7, 2915344), (8, 2550926), (14, 1457672), (16, 1275463), (28, 728836), (56, 364418), (112, 182209)]