81231741

素因数分解:

$3^9\times {\mathrm{4127}}^1$

素因数の和:4154

約数の個数: 20

約数和(自身を含む): 121875072

約数和(自身を除く): 40643331

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 4127, 6561, 12381, 19683, 37143, 111429, 334287, 1002861, 3008583, 9025749, 27077247, 81231741]

約数ペア:

[(1, 81231741), (3, 27077247), (9, 9025749), (27, 3008583), (81, 1002861), (243, 334287), (729, 111429), (2187, 37143), (4127, 19683), (6561, 12381)]