81673155

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{16651}}^1$

素因数の和:16771

約数の個数: 24

約数和(自身を含む): 142874160

約数和(自身を除く): 61201005

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4905, 16651, 49953, 83255, 149859, 249765, 749295, 1814959, 5444877, 9074795, 16334631, 27224385, 81673155]

約数ペア:

[(1, 81673155), (3, 27224385), (5, 16334631), (9, 9074795), (15, 5444877), (45, 1814959), (109, 749295), (327, 249765), (545, 149859), (981, 83255), (1635, 49953), (4905, 16651)]