21561512

素因数分解:

$2^3\times 7^1\times {\mathrm{385027}}^1$

素因数の和:385040

約数の個数: 16

約数和(自身を含む): 46203360

約数和(自身を除く): 24641848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 385027, 770054, 1540108, 2695189, 3080216, 5390378, 10780756, 21561512]

約数ペア:

[(1, 21561512), (2, 10780756), (4, 5390378), (7, 3080216), (8, 2695189), (14, 1540108), (28, 770054), (56, 385027)]