18420686

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{433}}^1$

素因数の和:763

約数の個数: 16

約数和(自身を含む): 28123200

約数和(自身を除く): 9702514

約数列:

[1, 2, 89, 178, 239, 433, 478, 866, 21271, 38537, 42542, 77074, 103487, 206974, 9210343, 18420686]

約数ペア:

[(1, 18420686), (2, 9210343), (89, 206974), (178, 103487), (239, 77074), (433, 42542), (478, 38537), (866, 21271)]