27688947

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 64

約数和(自身を含む): 47308800

約数和(自身を除く): 19619853

約数列:

[1, 3, 11, 13, 19, 33, 39, 43, 57, 79, 129, 143, 209, 237, 247, 429, 473, 559, 627, 741, 817, 869, 1027, 1419, 1501, 1677, 2451, 2607, 2717, 3081, 3397, 4503, 6149, 8151, 8987, 10191, 10621, 11297, 16511, 18447, 19513, 26961, 31863, 33891, 37367, 44161, 49533, 58539, 64543, 112101, 116831, 132483, 193629, 214643, 350493, 485771, 643929, 709973, 839059, 1457313, 2129919, 2517177, 9229649, 27688947]

約数ペア:

[(1, 27688947), (3, 9229649), (11, 2517177), (13, 2129919), (19, 1457313), (33, 839059), (39, 709973), (43, 643929), (57, 485771), (79, 350493), (129, 214643), (143, 193629), (209, 132483), (237, 116831), (247, 112101), (429, 64543), (473, 58539), (559, 49533), (627, 44161), (741, 37367), (817, 33891), (869, 31863), (1027, 26961), (1419, 19513), (1501, 18447), (1677, 16511), (2451, 11297), (2607, 10621), (2717, 10191), (3081, 8987), (3397, 8151), (4503, 6149)]