81848403

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 151595808

約数和(自身を除く): 69747405

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 73, 91, 111, 117, 219, 259, 273, 333, 481, 511, 657, 777, 819, 949, 1369, 1443, 1533, 2331, 2701, 2847, 3367, 4107, 4329, 4599, 6643, 8103, 8541, 9583, 10101, 12321, 17797, 18907, 19929, 24309, 28749, 30303, 35113, 53391, 56721, 59787, 86247, 99937, 105339, 124579, 160173, 170163, 245791, 299811, 316017, 373737, 699559, 737373, 899433, 1121211, 1299181, 2098677, 2212119, 3897543, 6296031, 9094267, 11692629, 27282801, 81848403]

約数ペア:

[(1, 81848403), (3, 27282801), (7, 11692629), (9, 9094267), (13, 6296031), (21, 3897543), (37, 2212119), (39, 2098677), (63, 1299181), (73, 1121211), (91, 899433), (111, 737373), (117, 699559), (219, 373737), (259, 316017), (273, 299811), (333, 245791), (481, 170163), (511, 160173), (657, 124579), (777, 105339), (819, 99937), (949, 86247), (1369, 59787), (1443, 56721), (1533, 53391), (2331, 35113), (2701, 30303), (2847, 28749), (3367, 24309), (4107, 19929), (4329, 18907), (4599, 17797), (6643, 12321), (8103, 10101), (8541, 9583)]