215530469

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{399871}}^1$

素因数の和:399896

約数の個数: 12

約数和(自身を含む): 273512448

約数和(自身を除く): 57981979

約数列:

[1, 7, 11, 49, 77, 539, 399871, 2799097, 4398581, 19593679, 30790067, 215530469]

約数ペア:

[(1, 215530469), (7, 30790067), (11, 19593679), (49, 4398581), (77, 2799097), (539, 399871)]