397942167

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{2237}}^1$

素因数の和:2487

約数の個数: 32

約数和(自身を含む): 623918592

約数和(自身を除く): 225976425

約数列:

[1, 3, 7, 21, 43, 129, 197, 301, 591, 903, 1379, 2237, 4137, 6711, 8471, 15659, 25413, 46977, 59297, 96191, 177891, 288573, 440689, 673337, 1322067, 2020011, 3084823, 9254469, 18949627, 56848881, 132647389, 397942167]

約数ペア:

[(1, 397942167), (3, 132647389), (7, 56848881), (21, 18949627), (43, 9254469), (129, 3084823), (197, 2020011), (301, 1322067), (591, 673337), (903, 440689), (1379, 288573), (2237, 177891), (4137, 96191), (6711, 59297), (8471, 46977), (15659, 25413)]