81991149

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{25471}}^1$

素因数の和:25540

約数の個数: 16

約数和(自身を含む): 116152320

約数和(自身を除く): 34161171

約数列:

[1, 3, 29, 37, 87, 111, 1073, 3219, 25471, 76413, 738659, 942427, 2215977, 2827281, 27330383, 81991149]

約数ペア:

[(1, 81991149), (3, 27330383), (29, 2827281), (37, 2215977), (87, 942427), (111, 738659), (1073, 76413), (3219, 25471)]