20993744

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{4219}}^1$

素因数の和:4538

約数の個数: 20

約数和(自身を含む): 40815840

約数和(自身を除く): 19822096

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4219, 4976, 8438, 16876, 33752, 67504, 1312109, 2624218, 5248436, 10496872, 20993744]

約数ペア:

[(1, 20993744), (2, 10496872), (4, 5248436), (8, 2624218), (16, 1312109), (311, 67504), (622, 33752), (1244, 16876), (2488, 8438), (4219, 4976)]