81561087

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{971}}^1$

素因数の和:1061

約数の個数: 40

約数和(自身を含む): 131254992

約数和(自身を除く): 49693905

約数列:

[1, 3, 9, 17, 27, 51, 61, 81, 153, 183, 459, 549, 971, 1037, 1377, 1647, 2913, 3111, 4941, 8739, 9333, 16507, 26217, 27999, 49521, 59231, 78651, 83997, 148563, 177693, 445689, 533079, 1006927, 1337067, 1599237, 3020781, 4797711, 9062343, 27187029, 81561087]

約数ペア:

[(1, 81561087), (3, 27187029), (9, 9062343), (17, 4797711), (27, 3020781), (51, 1599237), (61, 1337067), (81, 1006927), (153, 533079), (183, 445689), (459, 177693), (549, 148563), (971, 83997), (1037, 78651), (1377, 59231), (1647, 49521), (2913, 27999), (3111, 26217), (4941, 16507), (8739, 9333)]