20071239

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 28968192

約数和(自身を除く): 8896953

約数列:

[1, 3, 19, 43, 57, 129, 361, 431, 817, 1083, 1293, 2451, 8189, 15523, 18533, 24567, 46569, 55599, 155591, 352127, 466773, 1056381, 6690413, 20071239]

約数ペア:

[(1, 20071239), (3, 6690413), (19, 1056381), (43, 466773), (57, 352127), (129, 155591), (361, 55599), (431, 46569), (817, 24567), (1083, 18533), (1293, 15523), (2451, 8189)]