20147678

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9319}}^1$

素因数の和:9391

約数の個数: 16

約数和(自身を含む): 32209920

約数和(自身を除く): 12062242

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9319, 18638, 214337, 428674, 437993, 875986, 10073839, 20147678]

約数ペア:

[(1, 20147678), (2, 10073839), (23, 875986), (46, 437993), (47, 428674), (94, 214337), (1081, 18638), (2162, 9319)]