21000786642

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{853}}^1\times {\mathrm{124343}}^1$

素因数の和:125215

約数の個数: 48

約数和(自身を含む): 49696815168

約数和(自身を除く): 28696028526

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 853, 1706, 2559, 5118, 7677, 9383, 15354, 18766, 28149, 56298, 84447, 124343, 168894, 248686, 373029, 746058, 1119087, 1367773, 2238174, 2735546, 4103319, 8206638, 12309957, 24619914, 106064579, 212129158, 318193737, 636387474, 954581211, 1166710369, 1909162422, 2333420738, 3500131107, 7000262214, 10500393321, 21000786642]

約数ペア:

[(1, 21000786642), (2, 10500393321), (3, 7000262214), (6, 3500131107), (9, 2333420738), (11, 1909162422), (18, 1166710369), (22, 954581211), (33, 636387474), (66, 318193737), (99, 212129158), (198, 106064579), (853, 24619914), (1706, 12309957), (2559, 8206638), (5118, 4103319), (7677, 2735546), (9383, 2238174), (15354, 1367773), (18766, 1119087), (28149, 746058), (56298, 373029), (84447, 248686), (124343, 168894)]