21581442

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27883}}^1$

素因数の和:27934

約数の個数: 24

約数和(自身を含む): 47848944

約数和(自身を除く): 26267502

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27883, 55766, 83649, 167298, 250947, 501894, 1198969, 2397938, 3596907, 7193814, 10790721, 21581442]

約数ペア:

[(1, 21581442), (2, 10790721), (3, 7193814), (6, 3596907), (9, 2397938), (18, 1198969), (43, 501894), (86, 250947), (129, 167298), (258, 83649), (387, 55766), (774, 27883)]