19890345

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{9679}}^1$

素因数の和:9824

約数の個数: 16

約数和(自身を含む): 32060160

約数和(自身を除く): 12169815

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 9679, 29037, 48395, 145185, 1326023, 3978069, 6630115, 19890345]

約数ペア:

[(1, 19890345), (3, 6630115), (5, 3978069), (15, 1326023), (137, 145185), (411, 48395), (685, 29037), (2055, 9679)]