578721

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 32

約数和(自身を含む): 967680

約数和(自身を除く): 388959

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 71, 143, 209, 213, 247, 429, 627, 741, 781, 923, 1349, 2343, 2717, 2769, 4047, 8151, 10153, 14839, 17537, 30459, 44517, 52611, 192907, 578721]

約数ペア:

[(1, 578721), (3, 192907), (11, 52611), (13, 44517), (19, 30459), (33, 17537), (39, 14839), (57, 10153), (71, 8151), (143, 4047), (209, 2769), (213, 2717), (247, 2343), (429, 1349), (627, 923), (741, 781)]