81354417

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{3259}}^1$

素因数の和:3472

約数の個数: 16

約数和(自身を含む): 111257280

約数和(自身を除く): 29902863

約数列:

[1, 3, 53, 157, 159, 471, 3259, 8321, 9777, 24963, 172727, 511663, 518181, 1534989, 27118139, 81354417]

約数ペア:

[(1, 81354417), (3, 27118139), (53, 1534989), (157, 518181), (159, 511663), (471, 172727), (3259, 24963), (8321, 9777)]