209519984

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{278617}}^1$

素因数の和:278672

約数の個数: 20

約数和(自身を含む): 414583584

約数和(自身を除く): 205063600

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 278617, 557234, 1114468, 2228936, 4457872, 13094999, 26189998, 52379996, 104759992, 209519984]

約数ペア:

[(1, 209519984), (2, 104759992), (4, 52379996), (8, 26189998), (16, 13094999), (47, 4457872), (94, 2228936), (188, 1114468), (376, 557234), (752, 278617)]