18709616

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:669

約数の個数: 40

約数和(自身を含む): 38045184

約数和(自身を除く): 19335568

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 563, 1072, 1126, 2077, 2252, 4154, 4504, 8308, 9008, 16616, 17453, 33232, 34906, 37721, 69812, 75442, 139624, 150884, 279248, 301768, 603536, 1169351, 2338702, 4677404, 9354808, 18709616]

約数ペア:

[(1, 18709616), (2, 9354808), (4, 4677404), (8, 2338702), (16, 1169351), (31, 603536), (62, 301768), (67, 279248), (124, 150884), (134, 139624), (248, 75442), (268, 69812), (496, 37721), (536, 34906), (563, 33232), (1072, 17453), (1126, 16616), (2077, 9008), (2252, 8308), (4154, 4504)]