208759964

素因数分解:

$2^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{21121}}^1$

素因数の和:21485

約数の個数: 24

約数和(自身を含む): 418722528

約数和(自身を除く): 209962564

約数列:

[1, 2, 4, 7, 14, 28, 353, 706, 1412, 2471, 4942, 9884, 21121, 42242, 84484, 147847, 295694, 591388, 7455713, 14911426, 29822852, 52189991, 104379982, 208759964]

約数ペア:

[(1, 208759964), (2, 104379982), (4, 52189991), (7, 29822852), (14, 14911426), (28, 7455713), (353, 591388), (706, 295694), (1412, 147847), (2471, 84484), (4942, 42242), (9884, 21121)]