18731429678

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{27073}}^1$

素因数の和:27213

約数の個数: 48

約数和(自身を含む): 32105432160

約数和(自身を除く): 13374002482

約数列:

[1, 2, 13, 23, 26, 46, 89, 169, 178, 299, 338, 598, 1157, 2047, 2314, 3887, 4094, 7774, 15041, 26611, 27073, 30082, 53222, 54146, 345943, 351949, 622679, 691886, 703898, 1245358, 2409497, 4575337, 4818994, 8094827, 9150674, 16189654, 31323461, 55418431, 62646922, 105232751, 110836862, 210465502, 407204993, 720439603, 814409986, 1440879206, 9365714839, 18731429678]

約数ペア:

[(1, 18731429678), (2, 9365714839), (13, 1440879206), (23, 814409986), (26, 720439603), (46, 407204993), (89, 210465502), (169, 110836862), (178, 105232751), (299, 62646922), (338, 55418431), (598, 31323461), (1157, 16189654), (2047, 9150674), (2314, 8094827), (3887, 4818994), (4094, 4575337), (7774, 2409497), (15041, 1245358), (26611, 703898), (27073, 691886), (30082, 622679), (53222, 351949), (54146, 345943)]