21280288

素因数分解:

$2^5\times {\mathrm{109}}^1\times {\mathrm{6101}}^1$

素因数の和:6220

約数の個数: 24

約数和(自身を含む): 42286860

約数和(自身を除く): 21006572

約数列:

[1, 2, 4, 8, 16, 32, 109, 218, 436, 872, 1744, 3488, 6101, 12202, 24404, 48808, 97616, 195232, 665009, 1330018, 2660036, 5320072, 10640144, 21280288]

約数ペア:

[(1, 21280288), (2, 10640144), (4, 5320072), (8, 2660036), (16, 1330018), (32, 665009), (109, 195232), (218, 97616), (436, 48808), (872, 24404), (1744, 12202), (3488, 6101)]