213549721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{145967}}^1$

素因数の和:146004

約数の個数: 16

約数和(自身を含む): 280258560

約数和(自身を除く): 66708839

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 145967, 1021769, 1605637, 2773373, 11239459, 19413611, 30507103, 213549721]

約数ペア:

[(1, 213549721), (7, 30507103), (11, 19413611), (19, 11239459), (77, 2773373), (133, 1605637), (209, 1021769), (1463, 145967)]