21000944848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{1289}}^1$

素因数の和:1449

約数の個数: 160

約数和(自身を含む): 47229789600

約数和(自身を除く): 26228844752

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 37, 52, 58, 73, 74, 104, 116, 146, 148, 208, 232, 292, 296, 377, 464, 481, 584, 592, 754, 949, 962, 1073, 1168, 1289, 1508, 1898, 1924, 2117, 2146, 2578, 2701, 3016, 3796, 3848, 4234, 4292, 5156, 5402, 6032, 7592, 7696, 8468, 8584, 10312, 10804, 13949, 15184, 16757, 16936, 17168, 20624, 21608, 27521, 27898, 33514, 33872, 35113, 37381, 43216, 47693, 55042, 55796, 67028, 70226, 74762, 78329, 94097, 95386, 110084, 111592, 134056, 140452, 149524, 156658, 188194, 190772, 220168, 223184, 268112, 280904, 299048, 313316, 376388, 381544, 440336, 485953, 561808, 598096, 620009, 626632, 752776, 763088, 971906, 1018277, 1223261, 1240018, 1253264, 1383097, 1505552, 1943812, 2036554, 2446522, 2480036, 2728813, 2766194, 3481589, 3887624, 4073108, 4893044, 4960072, 5457626, 5532388, 6963178, 7775248, 8146216, 9786088, 9920144, 10915252, 11064776, 13926356, 16292432, 17980261, 19572176, 21830504, 22129552, 27852712, 35474569, 35960522, 43661008, 45260657, 55705424, 70949138, 71921044, 90521314, 100966081, 141898276, 143842088, 181042628, 201932162, 283796552, 287684176, 362085256, 403864324, 567593104, 724170512, 807728648, 1312559053, 1615457296, 2625118106, 5250236212, 10500472424, 21000944848]

約数ペア:

[(1, 21000944848), (2, 10500472424), (4, 5250236212), (8, 2625118106), (13, 1615457296), (16, 1312559053), (26, 807728648), (29, 724170512), (37, 567593104), (52, 403864324), (58, 362085256), (73, 287684176), (74, 283796552), (104, 201932162), (116, 181042628), (146, 143842088), (148, 141898276), (208, 100966081), (232, 90521314), (292, 71921044), (296, 70949138), (377, 55705424), (464, 45260657), (481, 43661008), (584, 35960522), (592, 35474569), (754, 27852712), (949, 22129552), (962, 21830504), (1073, 19572176), (1168, 17980261), (1289, 16292432), (1508, 13926356), (1898, 11064776), (1924, 10915252), (2117, 9920144), (2146, 9786088), (2578, 8146216), (2701, 7775248), (3016, 6963178), (3796, 5532388), (3848, 5457626), (4234, 4960072), (4292, 4893044), (5156, 4073108), (5402, 3887624), (6032, 3481589), (7592, 2766194), (7696, 2728813), (8468, 2480036), (8584, 2446522), (10312, 2036554), (10804, 1943812), (13949, 1505552), (15184, 1383097), (16757, 1253264), (16936, 1240018), (17168, 1223261), (20624, 1018277), (21608, 971906), (27521, 763088), (27898, 752776), (33514, 626632), (33872, 620009), (35113, 598096), (37381, 561808), (43216, 485953), (47693, 440336), (55042, 381544), (55796, 376388), (67028, 313316), (70226, 299048), (74762, 280904), (78329, 268112), (94097, 223184), (95386, 220168), (110084, 190772), (111592, 188194), (134056, 156658), (140452, 149524)]