21969724

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{8089}}^1$

素因数の和:8197

約数の個数: 24

約数和(自身を含む): 44397920

約数和(自身を除く): 22428196

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 8089, 16178, 32356, 56623, 113246, 226492, 784633, 1569266, 3138532, 5492431, 10984862, 21969724]

約数ペア:

[(1, 21969724), (2, 10984862), (4, 5492431), (7, 3138532), (14, 1569266), (28, 784633), (97, 226492), (194, 113246), (388, 56623), (679, 32356), (1358, 16178), (2716, 8089)]