20937872

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4657}}^1$

素因数の和:4946

約数の個数: 20

約数和(自身を含む): 40720236

約数和(自身を除く): 19782364

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4657, 9314, 18628, 37256, 74512, 1308617, 2617234, 5234468, 10468936, 20937872]

約数ペア:

[(1, 20937872), (2, 10468936), (4, 5234468), (8, 2617234), (16, 1308617), (281, 74512), (562, 37256), (1124, 18628), (2248, 9314), (4496, 4657)]