18888093

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^2\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 48

約数和(自身を含む): 33317760

約数和(自身を除く): 14429667

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 73, 111, 189, 219, 259, 333, 511, 657, 777, 999, 1369, 1533, 1971, 2331, 2701, 4107, 4599, 6993, 8103, 9583, 12321, 13797, 18907, 24309, 28749, 36963, 56721, 72927, 86247, 99937, 170163, 258741, 299811, 510489, 699559, 899433, 2098677, 2698299, 6296031, 18888093]

約数ペア:

[(1, 18888093), (3, 6296031), (7, 2698299), (9, 2098677), (21, 899433), (27, 699559), (37, 510489), (63, 299811), (73, 258741), (111, 170163), (189, 99937), (219, 86247), (259, 72927), (333, 56721), (511, 36963), (657, 28749), (777, 24309), (999, 18907), (1369, 13797), (1533, 12321), (1971, 9583), (2331, 8103), (2701, 6993), (4107, 4599)]