21000006

素因数分解:

$2^1\times 3^3\times {\mathrm{157}}^1\times {\mathrm{2477}}^1$

素因数の和:2645

約数の個数: 32

約数和(自身を含む): 46982880

約数和(自身を除く): 25982874

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 157, 314, 471, 942, 1413, 2477, 2826, 4239, 4954, 7431, 8478, 14862, 22293, 44586, 66879, 133758, 388889, 777778, 1166667, 2333334, 3500001, 7000002, 10500003, 21000006]

約数ペア:

[(1, 21000006), (2, 10500003), (3, 7000002), (6, 3500001), (9, 2333334), (18, 1166667), (27, 777778), (54, 388889), (157, 133758), (314, 66879), (471, 44586), (942, 22293), (1413, 14862), (2477, 8478), (2826, 7431), (4239, 4954)]