18899012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{5437}}^1$

素因数の和:5531

約数の個数: 24

約数和(自身を含む): 36543360

約数和(自身を除く): 17644348

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 5437, 10874, 21748, 59807, 119614, 239228, 429523, 859046, 1718092, 4724753, 9449506, 18899012]

約数ペア:

[(1, 18899012), (2, 9449506), (4, 4724753), (11, 1718092), (22, 859046), (44, 429523), (79, 239228), (158, 119614), (316, 59807), (869, 21748), (1738, 10874), (3476, 5437)]