18990544

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{28949}}^1$

素因数の和:28998

約数の個数: 20

約数和(自身を含む): 37692900

約数和(自身を除く): 18702356

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 28949, 57898, 115796, 231592, 463184, 1186909, 2373818, 4747636, 9495272, 18990544]

約数ペア:

[(1, 18990544), (2, 9495272), (4, 4747636), (8, 2373818), (16, 1186909), (41, 463184), (82, 231592), (164, 115796), (328, 57898), (656, 28949)]