209940579

素因数分解:

$3^5\times {\mathrm{53}}^1\times {\mathrm{16301}}^1$

素因数の和:16369

約数の個数: 24

約数和(自身を含む): 320432112

約数和(自身を除く): 110491533

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 1431, 4293, 12879, 16301, 48903, 146709, 440127, 863953, 1320381, 2591859, 3961143, 7775577, 23326731, 69980193, 209940579]

約数ペア:

[(1, 209940579), (3, 69980193), (9, 23326731), (27, 7775577), (53, 3961143), (81, 2591859), (159, 1320381), (243, 863953), (477, 440127), (1431, 146709), (4293, 48903), (12879, 16301)]