21810726

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 57507840

約数和(自身を除く): 35697114

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 47, 58, 63, 87, 94, 126, 127, 141, 174, 203, 254, 261, 282, 329, 381, 406, 423, 522, 609, 658, 762, 846, 889, 987, 1143, 1218, 1363, 1778, 1827, 1974, 2286, 2667, 2726, 2961, 3654, 3683, 4089, 5334, 5922, 5969, 7366, 8001, 8178, 9541, 11049, 11938, 12267, 16002, 17907, 19082, 22098, 24534, 25781, 28623, 33147, 35814, 41783, 51562, 53721, 57246, 66294, 77343, 83566, 85869, 107442, 125349, 154686, 171738, 173101, 232029, 250698, 346202, 376047, 464058, 519303, 752094, 1038606, 1211707, 1557909, 2423414, 3115818, 3635121, 7270242, 10905363, 21810726]

約数ペア:

[(1, 21810726), (2, 10905363), (3, 7270242), (6, 3635121), (7, 3115818), (9, 2423414), (14, 1557909), (18, 1211707), (21, 1038606), (29, 752094), (42, 519303), (47, 464058), (58, 376047), (63, 346202), (87, 250698), (94, 232029), (126, 173101), (127, 171738), (141, 154686), (174, 125349), (203, 107442), (254, 85869), (261, 83566), (282, 77343), (329, 66294), (381, 57246), (406, 53721), (423, 51562), (522, 41783), (609, 35814), (658, 33147), (762, 28623), (846, 25781), (889, 24534), (987, 22098), (1143, 19082), (1218, 17907), (1363, 16002), (1778, 12267), (1827, 11938), (1974, 11049), (2286, 9541), (2667, 8178), (2726, 8001), (2961, 7366), (3654, 5969), (3683, 5922), (4089, 5334)]