20217573

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{2591}}^1$

素因数の和:2634

約数の個数: 24

約数和(自身を含む): 31829760

約数和(自身を除く): 11612187

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2591, 2601, 7773, 7803, 23319, 44047, 69957, 132141, 396423, 748799, 1189269, 2246397, 6739191, 20217573]

約数ペア:

[(1, 20217573), (3, 6739191), (9, 2246397), (17, 1189269), (27, 748799), (51, 396423), (153, 132141), (289, 69957), (459, 44047), (867, 23319), (2591, 7803), (2601, 7773)]