20964258

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:186

約数の個数: 120

約数和(自身を含む): 57934800

約数和(自身を除く): 36970542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 49, 54, 57, 63, 81, 98, 114, 126, 133, 139, 147, 162, 171, 189, 266, 278, 294, 342, 378, 399, 417, 441, 513, 567, 798, 834, 882, 931, 973, 1026, 1134, 1197, 1251, 1323, 1539, 1862, 1946, 2394, 2502, 2641, 2646, 2793, 2919, 3078, 3591, 3753, 3969, 5282, 5586, 5838, 6811, 7182, 7506, 7923, 7938, 8379, 8757, 10773, 11259, 13622, 15846, 16758, 17514, 18487, 20433, 21546, 22518, 23769, 25137, 26271, 36974, 40866, 47538, 50274, 52542, 55461, 61299, 71307, 75411, 78813, 110922, 122598, 129409, 142614, 150822, 157626, 166383, 183897, 213921, 258818, 332766, 367794, 388227, 427842, 499149, 551691, 776454, 998298, 1103382, 1164681, 1497447, 2329362, 2994894, 3494043, 6988086, 10482129, 20964258]

約数ペア:

[(1, 20964258), (2, 10482129), (3, 6988086), (6, 3494043), (7, 2994894), (9, 2329362), (14, 1497447), (18, 1164681), (19, 1103382), (21, 998298), (27, 776454), (38, 551691), (42, 499149), (49, 427842), (54, 388227), (57, 367794), (63, 332766), (81, 258818), (98, 213921), (114, 183897), (126, 166383), (133, 157626), (139, 150822), (147, 142614), (162, 129409), (171, 122598), (189, 110922), (266, 78813), (278, 75411), (294, 71307), (342, 61299), (378, 55461), (399, 52542), (417, 50274), (441, 47538), (513, 40866), (567, 36974), (798, 26271), (834, 25137), (882, 23769), (931, 22518), (973, 21546), (1026, 20433), (1134, 18487), (1197, 17514), (1251, 16758), (1323, 15846), (1539, 13622), (1862, 11259), (1946, 10773), (2394, 8757), (2502, 8379), (2641, 7938), (2646, 7923), (2793, 7506), (2919, 7182), (3078, 6811), (3591, 5838), (3753, 5586), (3969, 5282)]