81661902

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:597

約数の個数: 64

約数和(自身を含む): 193290240

約数和(自身を除く): 111628338

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 103, 129, 206, 258, 301, 309, 439, 602, 618, 721, 878, 903, 1317, 1442, 1806, 2163, 2634, 3073, 4326, 4429, 6146, 8858, 9219, 13287, 18438, 18877, 26574, 31003, 37754, 45217, 56631, 62006, 90434, 93009, 113262, 132139, 135651, 186018, 264278, 271302, 316519, 396417, 633038, 792834, 949557, 1899114, 1944331, 3888662, 5832993, 11665986, 13610317, 27220634, 40830951, 81661902]

約数ペア:

[(1, 81661902), (2, 40830951), (3, 27220634), (6, 13610317), (7, 11665986), (14, 5832993), (21, 3888662), (42, 1944331), (43, 1899114), (86, 949557), (103, 792834), (129, 633038), (206, 396417), (258, 316519), (301, 271302), (309, 264278), (439, 186018), (602, 135651), (618, 132139), (721, 113262), (878, 93009), (903, 90434), (1317, 62006), (1442, 56631), (1806, 45217), (2163, 37754), (2634, 31003), (3073, 26574), (4326, 18877), (4429, 18438), (6146, 13287), (8858, 9219)]