28297213

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1553}}^1$

素因数の和:1716

約数の個数: 16

約数和(自身を含む): 34312320

約数和(自身を除く): 6015107

約数列:

[1, 7, 19, 133, 137, 959, 1553, 2603, 10871, 18221, 29507, 206549, 212761, 1489327, 4042459, 28297213]

約数ペア:

[(1, 28297213), (7, 4042459), (19, 1489327), (133, 212761), (137, 206549), (959, 29507), (1553, 18221), (2603, 10871)]