161388801

素因数分解:

$3^3\times 7^2\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:835

約数の個数: 48

約数和(自身を含む): 279984000

約数和(自身を除く): 118595199

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 199, 441, 597, 613, 1323, 1393, 1791, 1839, 4179, 4291, 5373, 5517, 9751, 12537, 12873, 16551, 29253, 30037, 37611, 38619, 87759, 90111, 115857, 121987, 263277, 270333, 365961, 810999, 853909, 1097883, 2561727, 3293649, 5977363, 7685181, 17932089, 23055543, 53796267, 161388801]

約数ペア:

[(1, 161388801), (3, 53796267), (7, 23055543), (9, 17932089), (21, 7685181), (27, 5977363), (49, 3293649), (63, 2561727), (147, 1097883), (189, 853909), (199, 810999), (441, 365961), (597, 270333), (613, 263277), (1323, 121987), (1393, 115857), (1791, 90111), (1839, 87759), (4179, 38619), (4291, 37611), (5373, 30037), (5517, 29253), (9751, 16551), (12537, 12873)]