257574303

素因数分解:

$3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{12503}}^1$

素因数の和:12628

約数の個数: 32

約数和(自身を含む): 440140800

約数和(自身を除く): 182566497

約数列:

[1, 3, 7, 9, 21, 27, 63, 109, 189, 327, 763, 981, 2289, 2943, 6867, 12503, 20601, 37509, 87521, 112527, 262563, 337581, 787689, 1362827, 2363067, 4088481, 9539789, 12265443, 28619367, 36796329, 85858101, 257574303]

約数ペア:

[(1, 257574303), (3, 85858101), (7, 36796329), (9, 28619367), (21, 12265443), (27, 9539789), (63, 4088481), (109, 2363067), (189, 1362827), (327, 787689), (763, 337581), (981, 262563), (2289, 112527), (2943, 87521), (6867, 37509), (12503, 20601)]