21066122

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 20924278

約数列:

[1, 2, 7, 11, 14, 22, 29, 53, 58, 77, 89, 106, 154, 178, 203, 319, 371, 406, 583, 623, 638, 742, 979, 1166, 1246, 1537, 1958, 2233, 2581, 3074, 4081, 4466, 4717, 5162, 6853, 8162, 9434, 10759, 13706, 16907, 18067, 21518, 28391, 33019, 33814, 36134, 51887, 56782, 66038, 103774, 118349, 136793, 198737, 236698, 273586, 363209, 397474, 726418, 957551, 1504723, 1915102, 3009446, 10533061, 21066122]

約数ペア:

[(1, 21066122), (2, 10533061), (7, 3009446), (11, 1915102), (14, 1504723), (22, 957551), (29, 726418), (53, 397474), (58, 363209), (77, 273586), (89, 236698), (106, 198737), (154, 136793), (178, 118349), (203, 103774), (319, 66038), (371, 56782), (406, 51887), (583, 36134), (623, 33814), (638, 33019), (742, 28391), (979, 21518), (1166, 18067), (1246, 16907), (1537, 13706), (1958, 10759), (2233, 9434), (2581, 8162), (3074, 6853), (4081, 5162), (4466, 4717)]