18178328

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3911}}^1$

素因数の和:4007

約数の個数: 32

約数和(自身を含む): 39432960

約数和(自身を除く): 21254632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 3911, 4648, 7822, 15644, 27377, 31288, 54754, 109508, 219016, 324613, 649226, 1298452, 2272291, 2596904, 4544582, 9089164, 18178328]

約数ペア:

[(1, 18178328), (2, 9089164), (4, 4544582), (7, 2596904), (8, 2272291), (14, 1298452), (28, 649226), (56, 324613), (83, 219016), (166, 109508), (332, 54754), (581, 31288), (664, 27377), (1162, 15644), (2324, 7822), (3911, 4648)]