20129816

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18919}}^1$

素因数の和:18951

約数の個数: 32

約数和(自身を含む): 45408000

約数和(自身を除く): 25278184

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 18919, 37838, 75676, 132433, 151352, 264866, 359461, 529732, 718922, 1059464, 1437844, 2516227, 2875688, 5032454, 10064908, 20129816]

約数ペア:

[(1, 20129816), (2, 10064908), (4, 5032454), (7, 2875688), (8, 2516227), (14, 1437844), (19, 1059464), (28, 718922), (38, 529732), (56, 359461), (76, 264866), (133, 151352), (152, 132433), (266, 75676), (532, 37838), (1064, 18919)]