20517196

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31859}}^1$

素因数の和:31893

約数の個数: 24

約数和(自身を含む): 42819840

約数和(自身を除く): 22302644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31859, 63718, 127436, 223013, 446026, 732757, 892052, 1465514, 2931028, 5129299, 10258598, 20517196]

約数ペア:

[(1, 20517196), (2, 10258598), (4, 5129299), (7, 2931028), (14, 1465514), (23, 892052), (28, 732757), (46, 446026), (92, 223013), (161, 127436), (322, 63718), (644, 31859)]