12747987

素因数分解:

$3^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:368

約数の個数: 36

約数和(自身を含む): 21678696

約数和(自身を除く): 8930709

約数列:

[1, 3, 7, 9, 21, 49, 63, 137, 147, 211, 411, 441, 633, 959, 1233, 1477, 1899, 2877, 4431, 6713, 8631, 10339, 13293, 20139, 28907, 31017, 60417, 86721, 93051, 202349, 260163, 607047, 1416443, 1821141, 4249329, 12747987]

約数ペア:

[(1, 12747987), (3, 4249329), (7, 1821141), (9, 1416443), (21, 607047), (49, 260163), (63, 202349), (137, 93051), (147, 86721), (211, 60417), (411, 31017), (441, 28907), (633, 20139), (959, 13293), (1233, 10339), (1477, 8631), (1899, 6713), (2877, 4431)]