18827754

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 43683840

約数和(自身を除く): 24856086

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 79, 138, 157, 158, 237, 253, 314, 471, 474, 506, 759, 869, 942, 1518, 1727, 1738, 1817, 2607, 3454, 3611, 3634, 5181, 5214, 5451, 7222, 10362, 10833, 10902, 12403, 19987, 21666, 24806, 37209, 39721, 39974, 59961, 74418, 79442, 119163, 119922, 136433, 238326, 272866, 285269, 409299, 570538, 818598, 855807, 1711614, 3137959, 6275918, 9413877, 18827754]

約数ペア:

[(1, 18827754), (2, 9413877), (3, 6275918), (6, 3137959), (11, 1711614), (22, 855807), (23, 818598), (33, 570538), (46, 409299), (66, 285269), (69, 272866), (79, 238326), (138, 136433), (157, 119922), (158, 119163), (237, 79442), (253, 74418), (314, 59961), (471, 39974), (474, 39721), (506, 37209), (759, 24806), (869, 21666), (942, 19987), (1518, 12403), (1727, 10902), (1738, 10833), (1817, 10362), (2607, 7222), (3454, 5451), (3611, 5214), (3634, 5181)]