20621824

素因数分解:

$2^9\times {\mathrm{40277}}^1$

素因数の和:40295

約数の個数: 20

約数和(自身を含む): 41204394

約数和(自身を除く): 20582570

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 40277, 80554, 161108, 322216, 644432, 1288864, 2577728, 5155456, 10310912, 20621824]

約数ペア:

[(1, 20621824), (2, 10310912), (4, 5155456), (8, 2577728), (16, 1288864), (32, 644432), (64, 322216), (128, 161108), (256, 80554), (512, 40277)]