1388387

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:123

約数の個数: 32

約数和(自身を含む): 1989120

約数和(自身を除く): 600733

約数列:

[1, 7, 11, 13, 19, 73, 77, 91, 133, 143, 209, 247, 511, 803, 949, 1001, 1387, 1463, 1729, 2717, 5621, 6643, 9709, 10439, 15257, 18031, 19019, 73073, 106799, 126217, 198341, 1388387]

約数ペア:

[(1, 1388387), (7, 198341), (11, 126217), (13, 106799), (19, 73073), (73, 19019), (77, 18031), (91, 15257), (133, 10439), (143, 9709), (209, 6643), (247, 5621), (511, 2717), (803, 1729), (949, 1463), (1001, 1387)]