21963669

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1871}}^1$

素因数の和:1937

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 14937195

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 1871, 3913, 5613, 11739, 13097, 24323, 39291, 72969, 80453, 170261, 241359, 510783, 563171, 1045889, 1689513, 3137667, 7321223, 21963669]

約数ペア:

[(1, 21963669), (3, 7321223), (7, 3137667), (13, 1689513), (21, 1045889), (39, 563171), (43, 510783), (91, 241359), (129, 170261), (273, 80453), (301, 72969), (559, 39291), (903, 24323), (1677, 13097), (1871, 11739), (3913, 5613)]