21569091640

素因数分解:

$2^3\times 5^1\times {\mathrm{539227291}}^1$

素因数の和:539227302

約数の個数: 16

約数和(自身を含む): 48530456280

約数和(自身を除く): 26961364640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 539227291, 1078454582, 2156909164, 2696136455, 4313818328, 5392272910, 10784545820, 21569091640]

約数ペア:

[(1, 21569091640), (2, 10784545820), (4, 5392272910), (5, 4313818328), (8, 2696136455), (10, 2156909164), (20, 1078454582), (40, 539227291)]