21247314

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{653}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 50855040

約数和(自身を除く): 29607726

約数列:

[1, 2, 3, 6, 11, 17, 22, 29, 33, 34, 51, 58, 66, 87, 102, 174, 187, 319, 374, 493, 561, 638, 653, 957, 986, 1122, 1306, 1479, 1914, 1959, 2958, 3918, 5423, 7183, 10846, 11101, 14366, 16269, 18937, 21549, 22202, 32538, 33303, 37874, 43098, 56811, 66606, 113622, 122111, 208307, 244222, 321929, 366333, 416614, 624921, 643858, 732666, 965787, 1249842, 1931574, 3541219, 7082438, 10623657, 21247314]

約数ペア:

[(1, 21247314), (2, 10623657), (3, 7082438), (6, 3541219), (11, 1931574), (17, 1249842), (22, 965787), (29, 732666), (33, 643858), (34, 624921), (51, 416614), (58, 366333), (66, 321929), (87, 244222), (102, 208307), (174, 122111), (187, 113622), (319, 66606), (374, 56811), (493, 43098), (561, 37874), (638, 33303), (653, 32538), (957, 22202), (986, 21549), (1122, 18937), (1306, 16269), (1479, 14366), (1914, 11101), (1959, 10846), (2958, 7183), (3918, 5423)]