21582407

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 27527808

約数和(自身を除く): 5945401

約数列:

[1, 7, 11, 77, 83, 121, 307, 581, 847, 913, 2149, 3377, 6391, 10043, 23639, 25481, 37147, 70301, 178367, 260029, 280291, 1962037, 3083201, 21582407]

約数ペア:

[(1, 21582407), (7, 3083201), (11, 1962037), (77, 280291), (83, 260029), (121, 178367), (307, 70301), (581, 37147), (847, 25481), (913, 23639), (2149, 10043), (3377, 6391)]