9991002

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1999}}^1$

素因数の和:2035

約数の個数: 48

約数和(自身を含む): 24624000

約数和(自身を除く): 14632998

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 49, 51, 98, 102, 119, 147, 238, 294, 357, 714, 833, 1666, 1999, 2499, 3998, 4998, 5997, 11994, 13993, 27986, 33983, 41979, 67966, 83958, 97951, 101949, 195902, 203898, 237881, 293853, 475762, 587706, 713643, 1427286, 1665167, 3330334, 4995501, 9991002]

約数ペア:

[(1, 9991002), (2, 4995501), (3, 3330334), (6, 1665167), (7, 1427286), (14, 713643), (17, 587706), (21, 475762), (34, 293853), (42, 237881), (49, 203898), (51, 195902), (98, 101949), (102, 97951), (119, 83958), (147, 67966), (238, 41979), (294, 33983), (357, 27986), (714, 13993), (833, 11994), (1666, 5997), (1999, 4998), (2499, 3998)]