277221

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:360

約数の個数: 16

約数和(自身を含む): 433664

約数和(自身を除く): 156443

約数列:

[1, 3, 7, 21, 43, 129, 301, 307, 903, 921, 2149, 6447, 13201, 39603, 92407, 277221]

約数ペア:

[(1, 277221), (3, 92407), (7, 39603), (21, 13201), (43, 6447), (129, 2149), (301, 921), (307, 903)]