21000565408

素因数分解:

$2^5\times {\mathrm{149}}^1\times {\mathrm{227}}^1\times {\mathrm{19403}}^1$

素因数の和:19789

約数の個数: 48

約数和(自身を含む): 41807858400

約数和(自身を除く): 20807292992

約数列:

[1, 2, 4, 8, 16, 32, 149, 227, 298, 454, 596, 908, 1192, 1816, 2384, 3632, 4768, 7264, 19403, 33823, 38806, 67646, 77612, 135292, 155224, 270584, 310448, 541168, 620896, 1082336, 2891047, 4404481, 5782094, 8808962, 11564188, 17617924, 23128376, 35235848, 46256752, 70471696, 92513504, 140943392, 656267669, 1312535338, 2625070676, 5250141352, 10500282704, 21000565408]

約数ペア:

[(1, 21000565408), (2, 10500282704), (4, 5250141352), (8, 2625070676), (16, 1312535338), (32, 656267669), (149, 140943392), (227, 92513504), (298, 70471696), (454, 46256752), (596, 35235848), (908, 23128376), (1192, 17617924), (1816, 11564188), (2384, 8808962), (3632, 5782094), (4768, 4404481), (7264, 2891047), (19403, 1082336), (33823, 620896), (38806, 541168), (67646, 310448), (77612, 270584), (135292, 155224)]