257029137

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{6199}}^1$

素因数の和:6493

約数の個数: 24

約数和(自身を含む): 394617600

約数和(自身を除く): 137588463

約数列:

[1, 3, 9, 17, 51, 153, 271, 813, 2439, 4607, 6199, 13821, 18597, 41463, 55791, 105383, 316149, 948447, 1679929, 5039787, 15119361, 28558793, 85676379, 257029137]

約数ペア:

[(1, 257029137), (3, 85676379), (9, 28558793), (17, 15119361), (51, 5039787), (153, 1679929), (271, 948447), (813, 316149), (2439, 105383), (4607, 55791), (6199, 41463), (13821, 18597)]