21989772

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 50586228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 29, 34, 36, 42, 51, 54, 58, 59, 63, 68, 84, 87, 102, 108, 116, 118, 119, 126, 153, 174, 177, 189, 203, 204, 236, 238, 252, 261, 306, 348, 354, 357, 378, 406, 413, 459, 476, 493, 522, 531, 609, 612, 708, 714, 756, 783, 812, 826, 918, 986, 1003, 1044, 1062, 1071, 1218, 1239, 1428, 1479, 1566, 1593, 1652, 1711, 1827, 1836, 1972, 2006, 2124, 2142, 2436, 2478, 2958, 3009, 3132, 3186, 3213, 3422, 3451, 3654, 3717, 4012, 4284, 4437, 4956, 5133, 5481, 5916, 6018, 6372, 6426, 6844, 6902, 7021, 7308, 7434, 8874, 9027, 10266, 10353, 10962, 11151, 11977, 12036, 12852, 13311, 13804, 14042, 14868, 15399, 17748, 18054, 20532, 20706, 21063, 21924, 22302, 23954, 26622, 27081, 28084, 29087, 30798, 31059, 35931, 36108, 41412, 42126, 44604, 46197, 47908, 53244, 54162, 58174, 61596, 62118, 63189, 71862, 84252, 87261, 92394, 93177, 107793, 108324, 116348, 124236, 126378, 143724, 174522, 184788, 186354, 189567, 203609, 215586, 252756, 261783, 323379, 349044, 372708, 379134, 407218, 431172, 523566, 610827, 646758, 758268, 785349, 814436, 1047132, 1221654, 1293516, 1570698, 1832481, 2443308, 3141396, 3664962, 5497443, 7329924, 10994886, 21989772]

約数ペア:

[(1, 21989772), (2, 10994886), (3, 7329924), (4, 5497443), (6, 3664962), (7, 3141396), (9, 2443308), (12, 1832481), (14, 1570698), (17, 1293516), (18, 1221654), (21, 1047132), (27, 814436), (28, 785349), (29, 758268), (34, 646758), (36, 610827), (42, 523566), (51, 431172), (54, 407218), (58, 379134), (59, 372708), (63, 349044), (68, 323379), (84, 261783), (87, 252756), (102, 215586), (108, 203609), (116, 189567), (118, 186354), (119, 184788), (126, 174522), (153, 143724), (174, 126378), (177, 124236), (189, 116348), (203, 108324), (204, 107793), (236, 93177), (238, 92394), (252, 87261), (261, 84252), (306, 71862), (348, 63189), (354, 62118), (357, 61596), (378, 58174), (406, 54162), (413, 53244), (459, 47908), (476, 46197), (493, 44604), (522, 42126), (531, 41412), (609, 36108), (612, 35931), (708, 31059), (714, 30798), (756, 29087), (783, 28084), (812, 27081), (826, 26622), (918, 23954), (986, 22302), (1003, 21924), (1044, 21063), (1062, 20706), (1071, 20532), (1218, 18054), (1239, 17748), (1428, 15399), (1479, 14868), (1566, 14042), (1593, 13804), (1652, 13311), (1711, 12852), (1827, 12036), (1836, 11977), (1972, 11151), (2006, 10962), (2124, 10353), (2142, 10266), (2436, 9027), (2478, 8874), (2958, 7434), (3009, 7308), (3132, 7021), (3186, 6902), (3213, 6844), (3422, 6426), (3451, 6372), (3654, 6018), (3717, 5916), (4012, 5481), (4284, 5133), (4437, 4956)]