81371073

素因数分解:

$3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{21647}}^1$

素因数の和:21836

約数の個数: 16

約数和(自身を含む): 124692480

約数和(自身を除く): 43321407

約数列:

[1, 3, 7, 21, 179, 537, 1253, 3759, 21647, 64941, 151529, 454587, 3874813, 11624439, 27123691, 81371073]

約数ペア:

[(1, 81371073), (3, 27123691), (7, 11624439), (21, 3874813), (179, 454587), (537, 151529), (1253, 64941), (3759, 21647)]