81289221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{48473}}^1$

素因数の和:48532

約数の個数: 16

約数和(自身を含む): 119439936

約数和(自身を除く): 38150715

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 48473, 145419, 630149, 1890447, 2084339, 6253017, 27096407, 81289221]

約数ペア:

[(1, 81289221), (3, 27096407), (13, 6253017), (39, 2084339), (43, 1890447), (129, 630149), (559, 145419), (1677, 48473)]