81405129

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 124588800

約数和(自身を除く): 43183671

約数列:

[1, 3, 13, 17, 39, 51, 199, 221, 597, 617, 663, 1851, 2587, 3383, 7761, 8021, 10149, 10489, 24063, 31467, 43979, 122783, 131937, 136357, 368349, 409071, 1596179, 2087311, 4788537, 6261933, 27135043, 81405129]

約数ペア:

[(1, 81405129), (3, 27135043), (13, 6261933), (17, 4788537), (39, 2087311), (51, 1596179), (199, 409071), (221, 368349), (597, 136357), (617, 131937), (663, 122783), (1851, 43979), (2587, 31467), (3383, 24063), (7761, 10489), (8021, 10149)]