18920428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1033}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 35031920

約数和(自身を除く): 16111492

約数列:

[1, 2, 4, 19, 38, 76, 241, 482, 964, 1033, 2066, 4132, 4579, 9158, 18316, 19627, 39254, 78508, 248953, 497906, 995812, 4730107, 9460214, 18920428]

約数ペア:

[(1, 18920428), (2, 9460214), (4, 4730107), (19, 995812), (38, 497906), (76, 248953), (241, 78508), (482, 39254), (964, 19627), (1033, 18316), (2066, 9158), (4132, 4579)]