21006055

素因数分解:

$5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1033}}^1$

素因数の和:1135

約数の個数: 24

約数和(自身を含む): 29704752

約数和(自身を除く): 8698697

約数列:

[1, 5, 7, 35, 49, 83, 245, 415, 581, 1033, 2905, 4067, 5165, 7231, 20335, 36155, 50617, 85739, 253085, 428695, 600173, 3000865, 4201211, 21006055]

約数ペア:

[(1, 21006055), (5, 4201211), (7, 3000865), (35, 600173), (49, 428695), (83, 253085), (245, 85739), (415, 50617), (581, 36155), (1033, 20335), (2905, 7231), (4067, 5165)]