8780643

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{2521}}^1$

素因数の和:2576

約数の個数: 20

約数和(自身を含む): 13427128

約数和(自身を除く): 4646485

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 2521, 3483, 7563, 22689, 68067, 108403, 204201, 325209, 975627, 2926881, 8780643]

約数ペア:

[(1, 8780643), (3, 2926881), (9, 975627), (27, 325209), (43, 204201), (81, 108403), (129, 68067), (387, 22689), (1161, 7563), (2521, 3483)]