206814531

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 348992000

約数和(自身を除く): 142177469

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 199, 231, 363, 409, 597, 847, 1227, 1393, 2189, 2541, 2863, 4179, 4499, 6567, 8589, 13497, 15323, 24079, 31493, 45969, 49489, 72237, 81391, 94479, 148467, 168553, 244173, 346423, 505659, 569737, 895301, 1039269, 1709211, 2685903, 6267107, 9848311, 18801321, 29544933, 68938177, 206814531]

約数ペア:

[(1, 206814531), (3, 68938177), (7, 29544933), (11, 18801321), (21, 9848311), (33, 6267107), (77, 2685903), (121, 1709211), (199, 1039269), (231, 895301), (363, 569737), (409, 505659), (597, 346423), (847, 244173), (1227, 168553), (1393, 148467), (2189, 94479), (2541, 81391), (2863, 72237), (4179, 49489), (4499, 45969), (6567, 31493), (8589, 24079), (13497, 15323)]