18997090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2687}}^1$

素因数の和:2802

約数の個数: 32

約数和(自身を含む): 39481344

約数和(自身を除く): 20484254

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 101, 202, 505, 707, 1010, 1414, 2687, 3535, 5374, 7070, 13435, 18809, 26870, 37618, 94045, 188090, 271387, 542774, 1356935, 1899709, 2713870, 3799418, 9498545, 18997090]

約数ペア:

[(1, 18997090), (2, 9498545), (5, 3799418), (7, 2713870), (10, 1899709), (14, 1356935), (35, 542774), (70, 271387), (101, 188090), (202, 94045), (505, 37618), (707, 26870), (1010, 18809), (1414, 13435), (2687, 7070), (3535, 5374)]