20723276

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4597}}^1$

素因数の和:4638

約数の個数: 36

約数和(自身を含む): 44030448

約数和(自身を除く): 23307172

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4508, 4597, 9194, 18388, 32179, 64358, 105731, 128716, 211462, 225253, 422924, 450506, 740117, 901012, 1480234, 2960468, 5180819, 10361638, 20723276]

約数ペア:

[(1, 20723276), (2, 10361638), (4, 5180819), (7, 2960468), (14, 1480234), (23, 901012), (28, 740117), (46, 450506), (49, 422924), (92, 225253), (98, 211462), (161, 128716), (196, 105731), (322, 64358), (644, 32179), (1127, 18388), (2254, 9194), (4508, 4597)]