18139765

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 26991360

約数和(自身を除く): 8851595

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 215, 301, 595, 709, 731, 1505, 3545, 3655, 4963, 5117, 12053, 24815, 25585, 30487, 60265, 84371, 152435, 213409, 421855, 518279, 1067045, 2591395, 3627953, 18139765]

約数ペア:

[(1, 18139765), (5, 3627953), (7, 2591395), (17, 1067045), (35, 518279), (43, 421855), (85, 213409), (119, 152435), (215, 84371), (301, 60265), (595, 30487), (709, 25585), (731, 24815), (1505, 12053), (3545, 5117), (3655, 4963)]