217978236

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 192

約数和(自身を含む): 681246720

約数和(自身を除く): 463268484

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 62, 63, 71, 84, 93, 108, 124, 126, 131, 142, 186, 189, 213, 217, 252, 262, 279, 284, 372, 378, 393, 426, 434, 497, 524, 558, 639, 651, 756, 786, 837, 852, 868, 917, 994, 1116, 1179, 1278, 1302, 1491, 1572, 1674, 1834, 1917, 1953, 1988, 2201, 2358, 2556, 2604, 2751, 2982, 3348, 3537, 3668, 3834, 3906, 4061, 4402, 4473, 4716, 5502, 5859, 5964, 6603, 7074, 7668, 7812, 8122, 8253, 8804, 8946, 9301, 11004, 11718, 12183, 13206, 13419, 14148, 15407, 16244, 16506, 17892, 18602, 19809, 23436, 24366, 24759, 26412, 26838, 27903, 28427, 30814, 33012, 36549, 37204, 39618, 46221, 48732, 49518, 53676, 55806, 56854, 59427, 61628, 65107, 73098, 79236, 83709, 85281, 92442, 99036, 109647, 111612, 113708, 118854, 130214, 138663, 146196, 167418, 170562, 184884, 195321, 219294, 237708, 251127, 255843, 260428, 277326, 288331, 334836, 341124, 390642, 415989, 438588, 502254, 511686, 554652, 576662, 585963, 767529, 781284, 831978, 864993, 1004508, 1023372, 1153324, 1171926, 1535058, 1663956, 1729986, 1757889, 2018317, 2343852, 2594979, 3070116, 3459972, 3515778, 4036634, 5189958, 6054951, 7031556, 7784937, 8073268, 10379916, 12109902, 15569874, 18164853, 24219804, 31139748, 36329706, 54494559, 72659412, 108989118, 217978236]

約数ペア:

[(1, 217978236), (2, 108989118), (3, 72659412), (4, 54494559), (6, 36329706), (7, 31139748), (9, 24219804), (12, 18164853), (14, 15569874), (18, 12109902), (21, 10379916), (27, 8073268), (28, 7784937), (31, 7031556), (36, 6054951), (42, 5189958), (54, 4036634), (62, 3515778), (63, 3459972), (71, 3070116), (84, 2594979), (93, 2343852), (108, 2018317), (124, 1757889), (126, 1729986), (131, 1663956), (142, 1535058), (186, 1171926), (189, 1153324), (213, 1023372), (217, 1004508), (252, 864993), (262, 831978), (279, 781284), (284, 767529), (372, 585963), (378, 576662), (393, 554652), (426, 511686), (434, 502254), (497, 438588), (524, 415989), (558, 390642), (639, 341124), (651, 334836), (756, 288331), (786, 277326), (837, 260428), (852, 255843), (868, 251127), (917, 237708), (994, 219294), (1116, 195321), (1179, 184884), (1278, 170562), (1302, 167418), (1491, 146196), (1572, 138663), (1674, 130214), (1834, 118854), (1917, 113708), (1953, 111612), (1988, 109647), (2201, 99036), (2358, 92442), (2556, 85281), (2604, 83709), (2751, 79236), (2982, 73098), (3348, 65107), (3537, 61628), (3668, 59427), (3834, 56854), (3906, 55806), (4061, 53676), (4402, 49518), (4473, 48732), (4716, 46221), (5502, 39618), (5859, 37204), (5964, 36549), (6603, 33012), (7074, 30814), (7668, 28427), (7812, 27903), (8122, 26838), (8253, 26412), (8804, 24759), (8946, 24366), (9301, 23436), (11004, 19809), (11718, 18602), (12183, 17892), (13206, 16506), (13419, 16244), (14148, 15407)]