18675938

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:769

約数の個数: 16

約数和(自身を含む): 28512000

約数和(自身を除く): 9836062

約数列:

[1, 2, 89, 178, 239, 439, 478, 878, 21271, 39071, 42542, 78142, 104921, 209842, 9337969, 18675938]

約数ペア:

[(1, 18675938), (2, 9337969), (89, 209842), (178, 104921), (239, 78142), (439, 42542), (478, 39071), (878, 21271)]