18118089

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 30476160

約数和(自身を除く): 12358071

約数列:

[1, 3, 9, 11, 23, 33, 69, 73, 99, 109, 207, 219, 253, 327, 657, 759, 803, 981, 1199, 1679, 2277, 2409, 2507, 3597, 5037, 7227, 7521, 7957, 10791, 15111, 18469, 22563, 23871, 27577, 55407, 71613, 82731, 87527, 166221, 183011, 248193, 262581, 549033, 787743, 1647099, 2013121, 6039363, 18118089]

約数ペア:

[(1, 18118089), (3, 6039363), (9, 2013121), (11, 1647099), (23, 787743), (33, 549033), (69, 262581), (73, 248193), (99, 183011), (109, 166221), (207, 87527), (219, 82731), (253, 71613), (327, 55407), (657, 27577), (759, 23871), (803, 22563), (981, 18469), (1199, 15111), (1679, 10791), (2277, 7957), (2409, 7521), (2507, 7227), (3597, 5037)]