247606947

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{4421}}^1$

素因数の和:4568

約数の個数: 36

約数和(自身を含む): 419417856

約数和(自身を除く): 171810909

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 381, 441, 889, 1143, 2667, 4421, 6223, 8001, 13263, 18669, 30947, 39789, 56007, 92841, 216629, 278523, 561467, 649887, 1684401, 1949661, 3930269, 5053203, 11790807, 27511883, 35372421, 82535649, 247606947]

約数ペア:

[(1, 247606947), (3, 82535649), (7, 35372421), (9, 27511883), (21, 11790807), (49, 5053203), (63, 3930269), (127, 1949661), (147, 1684401), (381, 649887), (441, 561467), (889, 278523), (1143, 216629), (2667, 92841), (4421, 56007), (6223, 39789), (8001, 30947), (13263, 18669)]