28137291

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103067}}^1$

素因数の和:103090

約数の個数: 16

約数和(自身を含む): 46174464

約数和(自身を除く): 18037173

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 103067, 309201, 721469, 1339871, 2164407, 4019613, 9379097, 28137291]

約数ペア:

[(1, 28137291), (3, 9379097), (7, 4019613), (13, 2164407), (21, 1339871), (39, 721469), (91, 309201), (273, 103067)]