20187272

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18973}}^1$

素因数の和:19005

約数の個数: 32

約数和(自身を含む): 45537600

約数和(自身を除く): 25350328

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 18973, 37946, 75892, 132811, 151784, 265622, 360487, 531244, 720974, 1062488, 1441948, 2523409, 2883896, 5046818, 10093636, 20187272]

約数ペア:

[(1, 20187272), (2, 10093636), (4, 5046818), (7, 2883896), (8, 2523409), (14, 1441948), (19, 1062488), (28, 720974), (38, 531244), (56, 360487), (76, 265622), (133, 151784), (152, 132811), (266, 75892), (532, 37946), (1064, 18973)]