21766514

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 44098560

約数和(自身を除く): 22332046

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 43, 77, 86, 133, 154, 173, 209, 266, 301, 346, 418, 473, 602, 817, 946, 1211, 1463, 1634, 1903, 2422, 2926, 3287, 3311, 3806, 5719, 6574, 6622, 7439, 8987, 11438, 13321, 14878, 17974, 23009, 26642, 36157, 46018, 52073, 62909, 72314, 81829, 104146, 125818, 141341, 163658, 253099, 282682, 506198, 572803, 989387, 1145606, 1554751, 1978774, 3109502, 10883257, 21766514]

約数ペア:

[(1, 21766514), (2, 10883257), (7, 3109502), (11, 1978774), (14, 1554751), (19, 1145606), (22, 989387), (38, 572803), (43, 506198), (77, 282682), (86, 253099), (133, 163658), (154, 141341), (173, 125818), (209, 104146), (266, 81829), (301, 72314), (346, 62909), (418, 52073), (473, 46018), (602, 36157), (817, 26642), (946, 23009), (1211, 17974), (1463, 14878), (1634, 13321), (1903, 11438), (2422, 8987), (2926, 7439), (3287, 6622), (3311, 6574), (3806, 5719)]