27748721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1459}}^1$

素因数の和:1509

約数の個数: 32

約数和(自身を含む): 39244800

約数和(自身を除く): 11496079

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1459, 1463, 1729, 2717, 10213, 16049, 18967, 19019, 27721, 112343, 132769, 194047, 208637, 304931, 360373, 1460459, 2134517, 2522611, 3964103, 27748721]

約数ペア:

[(1, 27748721), (7, 3964103), (11, 2522611), (13, 2134517), (19, 1460459), (77, 360373), (91, 304931), (133, 208637), (143, 194047), (209, 132769), (247, 112343), (1001, 27721), (1459, 19019), (1463, 18967), (1729, 16049), (2717, 10213)]