81542619

素因数分解:

$3^4\times {\mathrm{677}}^1\times {\mathrm{1487}}^1$

素因数の和:2176

約数の個数: 20

約数和(自身を含む): 122072544

約数和(自身を除く): 40529925

約数列:

[1, 3, 9, 27, 81, 677, 1487, 2031, 4461, 6093, 13383, 18279, 40149, 54837, 120447, 1006699, 3020097, 9060291, 27180873, 81542619]

約数ペア:

[(1, 81542619), (3, 27180873), (9, 9060291), (27, 3020097), (81, 1006699), (677, 120447), (1487, 54837), (2031, 40149), (4461, 18279), (6093, 13383)]