172971369

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{27031}}^1$

素因数の和:27122

約数の個数: 20

約数和(自身を含む): 261669760

約数和(自身を除く): 88698391

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 6399, 27031, 81093, 243279, 729837, 2135449, 2189511, 6406347, 19219041, 57657123, 172971369]

約数ペア:

[(1, 172971369), (3, 57657123), (9, 19219041), (27, 6406347), (79, 2189511), (81, 2135449), (237, 729837), (711, 243279), (2133, 81093), (6399, 27031)]