199985247

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:194

約数の個数: 128

約数和(自身を含む): 398131200

約数和(自身を除く): 198145953

約数列:

[1, 3, 7, 9, 11, 21, 27, 29, 31, 33, 63, 77, 87, 93, 99, 107, 189, 203, 217, 231, 261, 279, 297, 319, 321, 341, 609, 651, 693, 749, 783, 837, 899, 957, 963, 1023, 1177, 1827, 1953, 2079, 2233, 2247, 2387, 2697, 2871, 2889, 3069, 3103, 3317, 3531, 5481, 5859, 6293, 6699, 6741, 7161, 8091, 8239, 8613, 9207, 9309, 9889, 9951, 10593, 18879, 20097, 20223, 21483, 21721, 23219, 24273, 24717, 27927, 29667, 29853, 31779, 34133, 36487, 56637, 60291, 64449, 65163, 69223, 69657, 74151, 83781, 89001, 89559, 96193, 102399, 109461, 169911, 195489, 207669, 208971, 222453, 238931, 255409, 267003, 288579, 307197, 328383, 586467, 623007, 626913, 673351, 716793, 766227, 865737, 921591, 985149, 1058123, 1869021, 2020053, 2150379, 2298681, 2597211, 3174369, 6060159, 6451137, 6896043, 7406861, 9523107, 18180477, 22220583, 28569321, 66661749, 199985247]

約数ペア:

[(1, 199985247), (3, 66661749), (7, 28569321), (9, 22220583), (11, 18180477), (21, 9523107), (27, 7406861), (29, 6896043), (31, 6451137), (33, 6060159), (63, 3174369), (77, 2597211), (87, 2298681), (93, 2150379), (99, 2020053), (107, 1869021), (189, 1058123), (203, 985149), (217, 921591), (231, 865737), (261, 766227), (279, 716793), (297, 673351), (319, 626913), (321, 623007), (341, 586467), (609, 328383), (651, 307197), (693, 288579), (749, 267003), (783, 255409), (837, 238931), (899, 222453), (957, 208971), (963, 207669), (1023, 195489), (1177, 169911), (1827, 109461), (1953, 102399), (2079, 96193), (2233, 89559), (2247, 89001), (2387, 83781), (2697, 74151), (2871, 69657), (2889, 69223), (3069, 65163), (3103, 64449), (3317, 60291), (3531, 56637), (5481, 36487), (5859, 34133), (6293, 31779), (6699, 29853), (6741, 29667), (7161, 27927), (8091, 24717), (8239, 24273), (8613, 23219), (9207, 21721), (9309, 21483), (9889, 20223), (9951, 20097), (10593, 18879)]