128568921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{13679}}^1$

素因数の和:13936

約数の個数: 16

約数和(自身を含む): 185391360

約数和(自身を除く): 56822439

約数列:

[1, 3, 13, 39, 241, 723, 3133, 9399, 13679, 41037, 177827, 533481, 3296639, 9889917, 42856307, 128568921]

約数ペア:

[(1, 128568921), (3, 42856307), (13, 9889917), (39, 3296639), (241, 533481), (723, 177827), (3133, 41037), (9399, 13679)]