19880188

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{769}}^1$

素因数の和:1077

約数の個数: 24

約数和(自身を含む): 36479520

約数和(自身を除く): 16599332

約数列:

[1, 2, 4, 23, 46, 92, 281, 562, 769, 1124, 1538, 3076, 6463, 12926, 17687, 25852, 35374, 70748, 216089, 432178, 864356, 4970047, 9940094, 19880188]

約数ペア:

[(1, 19880188), (2, 9940094), (4, 4970047), (23, 864356), (46, 432178), (92, 216089), (281, 70748), (562, 35374), (769, 25852), (1124, 17687), (1538, 12926), (3076, 6463)]