21588976

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12379}}^1$

素因数の和:12496

約数の個数: 20

約数和(自身を含む): 42215800

約数和(自身を除く): 20626824

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12379, 24758, 49516, 99032, 198064, 1349311, 2698622, 5397244, 10794488, 21588976]

約数ペア:

[(1, 21588976), (2, 10794488), (4, 5397244), (8, 2698622), (16, 1349311), (109, 198064), (218, 99032), (436, 49516), (872, 24758), (1744, 12379)]