20158456

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{19841}}^1$

素因数の和:19974

約数の個数: 16

約数和(自身を含む): 38096640

約数和(自身を除く): 17938184

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 19841, 39682, 79364, 158728, 2519807, 5039614, 10079228, 20158456]

約数ペア:

[(1, 20158456), (2, 10079228), (4, 5039614), (8, 2519807), (127, 158728), (254, 79364), (508, 39682), (1016, 19841)]