11989555

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{761}}^1$

素因数の和:926

約数の個数: 16

約数和(自身を含む): 15142464

約数和(自身を除く): 3152909

約数列:

[1, 5, 23, 115, 137, 685, 761, 3151, 3805, 15755, 17503, 87515, 104257, 521285, 2397911, 11989555]

約数ペア:

[(1, 11989555), (5, 2397911), (23, 521285), (115, 104257), (137, 87515), (685, 17503), (761, 15755), (3151, 3805)]