81314961

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2503}}^1$

素因数の和:2550

約数の個数: 48

約数和(自身を含む): 143869824

約数和(自身を除く): 62554863

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 221, 273, 357, 637, 663, 833, 1547, 1911, 2499, 2503, 4641, 7509, 10829, 17521, 32487, 32539, 42551, 52563, 97617, 122647, 127653, 227773, 297857, 367941, 553163, 683319, 893571, 1594411, 1659489, 2084999, 3872141, 4783233, 6254997, 11616423, 27104987, 81314961]

約数ペア:

[(1, 81314961), (3, 27104987), (7, 11616423), (13, 6254997), (17, 4783233), (21, 3872141), (39, 2084999), (49, 1659489), (51, 1594411), (91, 893571), (119, 683319), (147, 553163), (221, 367941), (273, 297857), (357, 227773), (637, 127653), (663, 122647), (833, 97617), (1547, 52563), (1911, 42551), (2499, 32539), (2503, 32487), (4641, 17521), (7509, 10829)]