21452508

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 69189120

約数和(自身を除く): 47736612

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 71, 77, 84, 99, 109, 126, 132, 142, 154, 198, 213, 218, 231, 252, 284, 308, 327, 396, 426, 436, 462, 497, 639, 654, 693, 763, 781, 852, 924, 981, 994, 1199, 1278, 1308, 1386, 1491, 1526, 1562, 1962, 1988, 2289, 2343, 2398, 2556, 2772, 2982, 3052, 3124, 3597, 3924, 4473, 4578, 4686, 4796, 5467, 5964, 6867, 7029, 7194, 7739, 8393, 8946, 9156, 9372, 10791, 10934, 13734, 14058, 14388, 15478, 16401, 16786, 17892, 21582, 21868, 23217, 25179, 27468, 28116, 30956, 32802, 33572, 43164, 46434, 49203, 50358, 54173, 65604, 69651, 75537, 85129, 92868, 98406, 100716, 108346, 139302, 151074, 162519, 170258, 196812, 216692, 255387, 278604, 302148, 325038, 340516, 487557, 510774, 595903, 650076, 766161, 975114, 1021548, 1191806, 1532322, 1787709, 1950228, 2383612, 3064644, 3575418, 5363127, 7150836, 10726254, 21452508]

約数ペア:

[(1, 21452508), (2, 10726254), (3, 7150836), (4, 5363127), (6, 3575418), (7, 3064644), (9, 2383612), (11, 1950228), (12, 1787709), (14, 1532322), (18, 1191806), (21, 1021548), (22, 975114), (28, 766161), (33, 650076), (36, 595903), (42, 510774), (44, 487557), (63, 340516), (66, 325038), (71, 302148), (77, 278604), (84, 255387), (99, 216692), (109, 196812), (126, 170258), (132, 162519), (142, 151074), (154, 139302), (198, 108346), (213, 100716), (218, 98406), (231, 92868), (252, 85129), (284, 75537), (308, 69651), (327, 65604), (396, 54173), (426, 50358), (436, 49203), (462, 46434), (497, 43164), (639, 33572), (654, 32802), (693, 30956), (763, 28116), (781, 27468), (852, 25179), (924, 23217), (981, 21868), (994, 21582), (1199, 17892), (1278, 16786), (1308, 16401), (1386, 15478), (1491, 14388), (1526, 14058), (1562, 13734), (1962, 10934), (1988, 10791), (2289, 9372), (2343, 9156), (2398, 8946), (2556, 8393), (2772, 7739), (2982, 7194), (3052, 7029), (3124, 6867), (3597, 5964), (3924, 5467), (4473, 4796), (4578, 4686)]