290499321

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{2729}}^1$

素因数の和:2913

約数の個数: 32

約数和(自身を含む): 458115840

約数和(自身を除く): 167616519

約数列:

[1, 3, 7, 21, 37, 111, 137, 259, 411, 777, 959, 2729, 2877, 5069, 8187, 15207, 19103, 35483, 57309, 100973, 106449, 302919, 373873, 706811, 1121619, 2120433, 2617111, 7851333, 13833301, 41499903, 96833107, 290499321]

約数ペア:

[(1, 290499321), (3, 96833107), (7, 41499903), (21, 13833301), (37, 7851333), (111, 2617111), (137, 2120433), (259, 1121619), (411, 706811), (777, 373873), (959, 302919), (2729, 106449), (2877, 100973), (5069, 57309), (8187, 35483), (15207, 19103)]