81427269

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1361}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 141604416

約数和(自身を除く): 60177147

約数列:

[1, 3, 7, 11, 21, 33, 37, 49, 77, 111, 147, 231, 259, 407, 539, 777, 1221, 1361, 1617, 1813, 2849, 4083, 5439, 8547, 9527, 14971, 19943, 28581, 44913, 50357, 59829, 66689, 104797, 151071, 200067, 314391, 352499, 553927, 733579, 1057497, 1661781, 2200737, 2467493, 3877489, 7402479, 11632467, 27142423, 81427269]

約数ペア:

[(1, 81427269), (3, 27142423), (7, 11632467), (11, 7402479), (21, 3877489), (33, 2467493), (37, 2200737), (49, 1661781), (77, 1057497), (111, 733579), (147, 553927), (231, 352499), (259, 314391), (407, 200067), (539, 151071), (777, 104797), (1221, 66689), (1361, 59829), (1617, 50357), (1813, 44913), (2849, 28581), (4083, 19943), (5439, 14971), (8547, 9527)]