18872048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90731}}^1$

素因数の和:90752

約数の個数: 20

約数和(自身を含む): 39377688

約数和(自身を除く): 20505640

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90731, 181462, 362924, 725848, 1179503, 1451696, 2359006, 4718012, 9436024, 18872048]

約数ペア:

[(1, 18872048), (2, 9436024), (4, 4718012), (8, 2359006), (13, 1451696), (16, 1179503), (26, 725848), (52, 362924), (104, 181462), (208, 90731)]