81991641

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{3851}}^1$

素因数の和:4052

約数の個数: 16

約数和(自身を含む): 112416768

約数和(自身を除く): 30425127

約数列:

[1, 3, 47, 141, 151, 453, 3851, 7097, 11553, 21291, 180997, 542991, 581501, 1744503, 27330547, 81991641]

約数ペア:

[(1, 81991641), (3, 27330547), (47, 1744503), (141, 581501), (151, 542991), (453, 180997), (3851, 21291), (7097, 11553)]