18445203

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 32200896

約数和(自身を除く): 13755693

約数列:

[1, 3, 7, 9, 21, 37, 41, 63, 111, 123, 193, 259, 287, 333, 369, 579, 777, 861, 1351, 1517, 1737, 2331, 2583, 4053, 4551, 7141, 7913, 10619, 12159, 13653, 21423, 23739, 31857, 49987, 55391, 64269, 71217, 95571, 149961, 166173, 292781, 449883, 498519, 878343, 2049467, 2635029, 6148401, 18445203]

約数ペア:

[(1, 18445203), (3, 6148401), (7, 2635029), (9, 2049467), (21, 878343), (37, 498519), (41, 449883), (63, 292781), (111, 166173), (123, 149961), (193, 95571), (259, 71217), (287, 64269), (333, 55391), (369, 49987), (579, 31857), (777, 23739), (861, 21423), (1351, 13653), (1517, 12159), (1737, 10619), (2331, 7913), (2583, 7141), (4053, 4551)]