28547818

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 47552400

約数和(自身を除く): 19004582

約数列:

[1, 2, 13, 26, 73, 89, 146, 169, 178, 338, 949, 1157, 1898, 2197, 2314, 4394, 6497, 12337, 12994, 15041, 24674, 30082, 84461, 160381, 168922, 195533, 320762, 391066, 1097993, 2195986, 14273909, 28547818]

約数ペア:

[(1, 28547818), (2, 14273909), (13, 2195986), (26, 1097993), (73, 391066), (89, 320762), (146, 195533), (169, 168922), (178, 160381), (338, 84461), (949, 30082), (1157, 24674), (1898, 15041), (2197, 12994), (2314, 12337), (4394, 6497)]