18121976

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 35748000

約数和(自身を除く): 17626024

約数列:

[1, 2, 4, 8, 23, 46, 92, 149, 184, 298, 596, 661, 1192, 1322, 2644, 3427, 5288, 6854, 13708, 15203, 27416, 30406, 60812, 98489, 121624, 196978, 393956, 787912, 2265247, 4530494, 9060988, 18121976]

約数ペア:

[(1, 18121976), (2, 9060988), (4, 4530494), (8, 2265247), (23, 787912), (46, 393956), (92, 196978), (149, 121624), (184, 98489), (298, 60812), (596, 30406), (661, 27416), (1192, 15203), (1322, 13708), (2644, 6854), (3427, 5288)]