21808116

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 64643040

約数和(自身を除く): 42834924

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 29, 33, 36, 44, 54, 58, 66, 81, 87, 99, 108, 116, 132, 162, 174, 198, 211, 261, 297, 319, 324, 348, 396, 422, 522, 594, 633, 638, 783, 844, 891, 957, 1044, 1188, 1266, 1276, 1566, 1782, 1899, 1914, 2321, 2349, 2532, 2871, 3132, 3564, 3798, 3828, 4642, 4698, 5697, 5742, 6119, 6963, 7596, 8613, 9284, 9396, 11394, 11484, 12238, 13926, 17091, 17226, 18357, 20889, 22788, 24476, 25839, 27852, 34182, 34452, 36714, 41778, 51678, 55071, 62667, 67309, 68364, 73428, 83556, 103356, 110142, 125334, 134618, 165213, 188001, 201927, 220284, 250668, 269236, 330426, 376002, 403854, 495639, 605781, 660852, 752004, 807708, 991278, 1211562, 1817343, 1982556, 2423124, 3634686, 5452029, 7269372, 10904058, 21808116]

約数ペア:

[(1, 21808116), (2, 10904058), (3, 7269372), (4, 5452029), (6, 3634686), (9, 2423124), (11, 1982556), (12, 1817343), (18, 1211562), (22, 991278), (27, 807708), (29, 752004), (33, 660852), (36, 605781), (44, 495639), (54, 403854), (58, 376002), (66, 330426), (81, 269236), (87, 250668), (99, 220284), (108, 201927), (116, 188001), (132, 165213), (162, 134618), (174, 125334), (198, 110142), (211, 103356), (261, 83556), (297, 73428), (319, 68364), (324, 67309), (348, 62667), (396, 55071), (422, 51678), (522, 41778), (594, 36714), (633, 34452), (638, 34182), (783, 27852), (844, 25839), (891, 24476), (957, 22788), (1044, 20889), (1188, 18357), (1266, 17226), (1276, 17091), (1566, 13926), (1782, 12238), (1899, 11484), (1914, 11394), (2321, 9396), (2349, 9284), (2532, 8613), (2871, 7596), (3132, 6963), (3564, 6119), (3798, 5742), (3828, 5697), (4642, 4698)]