16965513

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 26208000

約数和(自身を除く): 9242487

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 1999, 2829, 5997, 8487, 17991, 45977, 81959, 137931, 245877, 413793, 737631, 1885057, 5655171, 16965513]

約数ペア:

[(1, 16965513), (3, 5655171), (9, 1885057), (23, 737631), (41, 413793), (69, 245877), (123, 137931), (207, 81959), (369, 45977), (943, 17991), (1999, 8487), (2829, 5997)]