20938764

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:116

約数の個数: 192

約数和(自身を含む): 68124672

約数和(自身を除く): 47185908

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 31, 33, 34, 42, 43, 44, 51, 62, 66, 68, 77, 84, 86, 93, 102, 119, 124, 129, 132, 154, 172, 186, 187, 204, 217, 231, 238, 258, 301, 308, 341, 357, 372, 374, 434, 462, 473, 476, 516, 527, 561, 602, 651, 682, 714, 731, 748, 868, 903, 924, 946, 1023, 1054, 1122, 1204, 1302, 1309, 1333, 1364, 1419, 1428, 1462, 1581, 1806, 1892, 2046, 2108, 2193, 2244, 2387, 2604, 2618, 2666, 2838, 2924, 3162, 3311, 3612, 3689, 3927, 3999, 4092, 4386, 4774, 5117, 5236, 5332, 5676, 5797, 6324, 6622, 7161, 7378, 7854, 7998, 8041, 8772, 9331, 9548, 9933, 10234, 11067, 11594, 13244, 14322, 14663, 14756, 15351, 15708, 15996, 16082, 17391, 18662, 19866, 20468, 22134, 22661, 23188, 24123, 27993, 28644, 29326, 30702, 32164, 34782, 37324, 39732, 40579, 43989, 44268, 45322, 48246, 55986, 56287, 58652, 61404, 67983, 69564, 81158, 87978, 90644, 96492, 102641, 111972, 112574, 121737, 135966, 158627, 162316, 168861, 175956, 205282, 225148, 243474, 249271, 271932, 307923, 317254, 337722, 410564, 475881, 486948, 498542, 615846, 634508, 675444, 747813, 951762, 997084, 1231692, 1495626, 1744897, 1903524, 2991252, 3489794, 5234691, 6979588, 10469382, 20938764]

約数ペア:

[(1, 20938764), (2, 10469382), (3, 6979588), (4, 5234691), (6, 3489794), (7, 2991252), (11, 1903524), (12, 1744897), (14, 1495626), (17, 1231692), (21, 997084), (22, 951762), (28, 747813), (31, 675444), (33, 634508), (34, 615846), (42, 498542), (43, 486948), (44, 475881), (51, 410564), (62, 337722), (66, 317254), (68, 307923), (77, 271932), (84, 249271), (86, 243474), (93, 225148), (102, 205282), (119, 175956), (124, 168861), (129, 162316), (132, 158627), (154, 135966), (172, 121737), (186, 112574), (187, 111972), (204, 102641), (217, 96492), (231, 90644), (238, 87978), (258, 81158), (301, 69564), (308, 67983), (341, 61404), (357, 58652), (372, 56287), (374, 55986), (434, 48246), (462, 45322), (473, 44268), (476, 43989), (516, 40579), (527, 39732), (561, 37324), (602, 34782), (651, 32164), (682, 30702), (714, 29326), (731, 28644), (748, 27993), (868, 24123), (903, 23188), (924, 22661), (946, 22134), (1023, 20468), (1054, 19866), (1122, 18662), (1204, 17391), (1302, 16082), (1309, 15996), (1333, 15708), (1364, 15351), (1419, 14756), (1428, 14663), (1462, 14322), (1581, 13244), (1806, 11594), (1892, 11067), (2046, 10234), (2108, 9933), (2193, 9548), (2244, 9331), (2387, 8772), (2604, 8041), (2618, 7998), (2666, 7854), (2838, 7378), (2924, 7161), (3162, 6622), (3311, 6324), (3612, 5797), (3689, 5676), (3927, 5332), (3999, 5236), (4092, 5117), (4386, 4774)]