21523792

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18947}}^1$

素因数の和:19026

約数の個数: 20

約数和(自身を含む): 42291936

約数和(自身を除く): 20768144

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18947, 37894, 75788, 151576, 303152, 1345237, 2690474, 5380948, 10761896, 21523792]

約数ペア:

[(1, 21523792), (2, 10761896), (4, 5380948), (8, 2690474), (16, 1345237), (71, 303152), (142, 151576), (284, 75788), (568, 37894), (1136, 18947)]