19979205

素因数分解:

$3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5573}}^1$

素因数の和:5820

約数の個数: 16

約数和(自身を含む): 32106240

約数和(自身を除く): 12127035

約数列:

[1, 3, 5, 15, 239, 717, 1195, 3585, 5573, 16719, 27865, 83595, 1331947, 3995841, 6659735, 19979205]

約数ペア:

[(1, 19979205), (3, 6659735), (5, 3995841), (15, 1331947), (239, 83595), (717, 27865), (1195, 16719), (3585, 5573)]