21234776

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61729}}^1$

素因数の和:61778

約数の個数: 16

約数和(自身を含む): 40741800

約数和(自身を除く): 19507024

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61729, 123458, 246916, 493832, 2654347, 5308694, 10617388, 21234776]

約数ペア:

[(1, 21234776), (2, 10617388), (4, 5308694), (8, 2654347), (43, 493832), (86, 246916), (172, 123458), (344, 61729)]