20744945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{727}}^1$

素因数の和:1184

約数の個数: 16

約数和(自身を含む): 26906880

約数和(自身を除く): 6161935

約数列:

[1, 5, 13, 65, 439, 727, 2195, 3635, 5707, 9451, 28535, 47255, 319153, 1595765, 4148989, 20744945]

約数ペア:

[(1, 20744945), (5, 4148989), (13, 1595765), (65, 319153), (439, 47255), (727, 28535), (2195, 9451), (3635, 5707)]