18671216

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:593

約数の個数: 40

約数和(自身を含む): 38167200

約数和(自身を除く): 19495984

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 113, 184, 226, 368, 449, 452, 898, 904, 1796, 1808, 2599, 3592, 5198, 7184, 10327, 10396, 20654, 20792, 41308, 41584, 50737, 82616, 101474, 165232, 202948, 405896, 811792, 1166951, 2333902, 4667804, 9335608, 18671216]

約数ペア:

[(1, 18671216), (2, 9335608), (4, 4667804), (8, 2333902), (16, 1166951), (23, 811792), (46, 405896), (92, 202948), (113, 165232), (184, 101474), (226, 82616), (368, 50737), (449, 41584), (452, 41308), (898, 20792), (904, 20654), (1796, 10396), (1808, 10327), (2599, 7184), (3592, 5198)]