20487376

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14071}}^1$

素因数の和:14099

約数の個数: 40

約数和(自身を含む): 48857984

約数和(自身を除く): 28370608

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14071, 28142, 56284, 98497, 112568, 182923, 196994, 225136, 365846, 393988, 731692, 787976, 1280461, 1463384, 1575952, 2560922, 2926768, 5121844, 10243688, 20487376]

約数ペア:

[(1, 20487376), (2, 10243688), (4, 5121844), (7, 2926768), (8, 2560922), (13, 1575952), (14, 1463384), (16, 1280461), (26, 787976), (28, 731692), (52, 393988), (56, 365846), (91, 225136), (104, 196994), (112, 182923), (182, 112568), (208, 98497), (364, 56284), (728, 28142), (1456, 14071)]