28691558

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{811}}^1$

素因数の和:865

約数の個数: 36

約数和(自身を含む): 52902612

約数和(自身を除く): 24211054

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 361, 722, 811, 931, 1622, 1862, 2527, 5054, 5677, 11354, 15409, 17689, 30818, 35378, 39739, 79478, 107863, 215726, 292771, 585542, 755041, 1510082, 2049397, 4098794, 14345779, 28691558]

約数ペア:

[(1, 28691558), (2, 14345779), (7, 4098794), (14, 2049397), (19, 1510082), (38, 755041), (49, 585542), (98, 292771), (133, 215726), (266, 107863), (361, 79478), (722, 39739), (811, 35378), (931, 30818), (1622, 17689), (1862, 15409), (2527, 11354), (5054, 5677)]