20107654

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{433}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 15890042

約数列:

[1, 2, 7, 14, 31, 62, 107, 214, 217, 433, 434, 749, 866, 1498, 3031, 3317, 6062, 6634, 13423, 23219, 26846, 46331, 46438, 92662, 93961, 187922, 324317, 648634, 1436261, 2872522, 10053827, 20107654]

約数ペア:

[(1, 20107654), (2, 10053827), (7, 2872522), (14, 1436261), (31, 648634), (62, 324317), (107, 187922), (214, 93961), (217, 92662), (433, 46438), (434, 46331), (749, 26846), (866, 23219), (1498, 13423), (3031, 6634), (3317, 6062)]