81931755

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{321301}}^1$

素因数の和:321326

約数の個数: 16

約数和(自身を含む): 138802464

約数和(自身を除く): 56870709

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 321301, 963903, 1606505, 4819515, 5462117, 16386351, 27310585, 81931755]

約数ペア:

[(1, 81931755), (3, 27310585), (5, 16386351), (15, 5462117), (17, 4819515), (51, 1606505), (85, 963903), (255, 321301)]