20719006

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 41771520

約数和(自身を除く): 21052514

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 73, 77, 97, 133, 146, 154, 194, 209, 266, 418, 511, 679, 803, 1022, 1067, 1358, 1387, 1463, 1606, 1843, 2134, 2774, 2926, 3686, 5621, 7081, 7469, 9709, 11242, 12901, 14162, 14938, 15257, 19418, 20273, 25802, 30514, 40546, 49567, 77891, 99134, 106799, 134539, 141911, 155782, 213598, 269078, 283822, 545237, 941773, 1090474, 1479929, 1883546, 2959858, 10359503, 20719006]

約数ペア:

[(1, 20719006), (2, 10359503), (7, 2959858), (11, 1883546), (14, 1479929), (19, 1090474), (22, 941773), (38, 545237), (73, 283822), (77, 269078), (97, 213598), (133, 155782), (146, 141911), (154, 134539), (194, 106799), (209, 99134), (266, 77891), (418, 49567), (511, 40546), (679, 30514), (803, 25802), (1022, 20273), (1067, 19418), (1358, 15257), (1387, 14938), (1463, 14162), (1606, 12901), (1843, 11242), (2134, 9709), (2774, 7469), (2926, 7081), (3686, 5621)]