399435057

素因数分解:

$3^4\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1069}}^1$

素因数の和:1747

約数の個数: 40

約数和(自身を含む): 683601600

約数和(自身を除く): 284166543

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 659, 1069, 1977, 3207, 4613, 5931, 7483, 9621, 13839, 17793, 22449, 28863, 41517, 53379, 67347, 86589, 124551, 202041, 373653, 606123, 704471, 2113413, 4931297, 6340239, 14793891, 19020717, 44381673, 57062151, 133145019, 399435057]

約数ペア:

[(1, 399435057), (3, 133145019), (7, 57062151), (9, 44381673), (21, 19020717), (27, 14793891), (63, 6340239), (81, 4931297), (189, 2113413), (567, 704471), (659, 606123), (1069, 373653), (1977, 202041), (3207, 124551), (4613, 86589), (5931, 67347), (7483, 53379), (9621, 41517), (13839, 28863), (17793, 22449)]