21000753333

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{124429}}^1$

素因数の和:124511

約数の個数: 64

約数和(自身を含む): 38224896000

約数和(自身を除く): 17224142667

約数列:

[1, 3, 7, 9, 19, 21, 27, 47, 57, 63, 133, 141, 171, 189, 329, 399, 423, 513, 893, 987, 1197, 1269, 2679, 2961, 3591, 6251, 8037, 8883, 18753, 24111, 56259, 124429, 168777, 373287, 871003, 1119861, 2364151, 2613009, 3359583, 5848163, 7092453, 7839027, 16549057, 17544489, 21277359, 23517081, 40937141, 49647171, 52633467, 63832077, 111115097, 122811423, 148941513, 157900401, 333345291, 368434269, 446824539, 777805679, 1000035873, 1105302807, 2333417037, 3000107619, 7000251111, 21000753333]

約数ペア:

[(1, 21000753333), (3, 7000251111), (7, 3000107619), (9, 2333417037), (19, 1105302807), (21, 1000035873), (27, 777805679), (47, 446824539), (57, 368434269), (63, 333345291), (133, 157900401), (141, 148941513), (171, 122811423), (189, 111115097), (329, 63832077), (399, 52633467), (423, 49647171), (513, 40937141), (893, 23517081), (987, 21277359), (1197, 17544489), (1269, 16549057), (2679, 7839027), (2961, 7092453), (3591, 5848163), (6251, 3359583), (8037, 2613009), (8883, 2364151), (18753, 1119861), (24111, 871003), (56259, 373287), (124429, 168777)]