20117816

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{19801}}^1$

素因数の和:19934

約数の個数: 16

約数和(自身を含む): 38019840

約数和(自身を除く): 17902024

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 19801, 39602, 79204, 158408, 2514727, 5029454, 10058908, 20117816]

約数ペア:

[(1, 20117816), (2, 10058908), (4, 5029454), (8, 2514727), (127, 158408), (254, 79204), (508, 39602), (1016, 19801)]