21502908

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:541

約数の個数: 120

約数和(自身を含む): 67760000

約数和(自身を除く): 46257092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 108, 114, 126, 133, 162, 171, 189, 228, 252, 266, 324, 342, 378, 399, 499, 513, 532, 567, 684, 756, 798, 998, 1026, 1134, 1197, 1497, 1539, 1596, 1996, 2052, 2268, 2394, 2994, 3078, 3493, 3591, 4491, 4788, 5988, 6156, 6986, 7182, 8982, 9481, 10479, 10773, 13473, 13972, 14364, 17964, 18962, 20958, 21546, 26946, 28443, 31437, 37924, 40419, 41916, 43092, 53892, 56886, 62874, 66367, 80838, 85329, 94311, 113772, 125748, 132734, 161676, 170658, 188622, 199101, 255987, 265468, 282933, 341316, 377244, 398202, 511974, 565866, 597303, 767961, 796404, 1023948, 1131732, 1194606, 1535922, 1791909, 2389212, 3071844, 3583818, 5375727, 7167636, 10751454, 21502908]

約数ペア:

[(1, 21502908), (2, 10751454), (3, 7167636), (4, 5375727), (6, 3583818), (7, 3071844), (9, 2389212), (12, 1791909), (14, 1535922), (18, 1194606), (19, 1131732), (21, 1023948), (27, 796404), (28, 767961), (36, 597303), (38, 565866), (42, 511974), (54, 398202), (57, 377244), (63, 341316), (76, 282933), (81, 265468), (84, 255987), (108, 199101), (114, 188622), (126, 170658), (133, 161676), (162, 132734), (171, 125748), (189, 113772), (228, 94311), (252, 85329), (266, 80838), (324, 66367), (342, 62874), (378, 56886), (399, 53892), (499, 43092), (513, 41916), (532, 40419), (567, 37924), (684, 31437), (756, 28443), (798, 26946), (998, 21546), (1026, 20958), (1134, 18962), (1197, 17964), (1497, 14364), (1539, 13972), (1596, 13473), (1996, 10773), (2052, 10479), (2268, 9481), (2394, 8982), (2994, 7182), (3078, 6986), (3493, 6156), (3591, 5988), (4491, 4788)]