21649950

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 71424000

約数和(自身を除く): 49774050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 29, 30, 35, 42, 45, 50, 54, 58, 63, 70, 75, 79, 87, 90, 105, 126, 135, 145, 150, 158, 174, 175, 189, 203, 210, 225, 237, 261, 270, 290, 315, 350, 378, 395, 406, 435, 450, 474, 522, 525, 553, 609, 630, 675, 711, 725, 783, 790, 870, 945, 1015, 1050, 1106, 1185, 1218, 1305, 1350, 1422, 1450, 1566, 1575, 1659, 1827, 1890, 1975, 2030, 2133, 2175, 2291, 2370, 2610, 2765, 3045, 3150, 3318, 3555, 3654, 3915, 3950, 4266, 4350, 4582, 4725, 4977, 5075, 5481, 5530, 5925, 6090, 6525, 6873, 7110, 7830, 8295, 9135, 9450, 9954, 10150, 10665, 10962, 11455, 11850, 13050, 13746, 13825, 14931, 15225, 16037, 16590, 17775, 18270, 19575, 20619, 21330, 22910, 24885, 27405, 27650, 29862, 30450, 32074, 34365, 35550, 39150, 41238, 41475, 45675, 48111, 49770, 53325, 54810, 57275, 61857, 68730, 74655, 80185, 82950, 91350, 96222, 103095, 106650, 114550, 123714, 124425, 137025, 144333, 149310, 160370, 171825, 206190, 240555, 248850, 274050, 288666, 309285, 343650, 373275, 400925, 432999, 481110, 515475, 618570, 721665, 746550, 801850, 865998, 1030950, 1202775, 1443330, 1546425, 2164995, 2405550, 3092850, 3608325, 4329990, 7216650, 10824975, 21649950]

約数ペア:

[(1, 21649950), (2, 10824975), (3, 7216650), (5, 4329990), (6, 3608325), (7, 3092850), (9, 2405550), (10, 2164995), (14, 1546425), (15, 1443330), (18, 1202775), (21, 1030950), (25, 865998), (27, 801850), (29, 746550), (30, 721665), (35, 618570), (42, 515475), (45, 481110), (50, 432999), (54, 400925), (58, 373275), (63, 343650), (70, 309285), (75, 288666), (79, 274050), (87, 248850), (90, 240555), (105, 206190), (126, 171825), (135, 160370), (145, 149310), (150, 144333), (158, 137025), (174, 124425), (175, 123714), (189, 114550), (203, 106650), (210, 103095), (225, 96222), (237, 91350), (261, 82950), (270, 80185), (290, 74655), (315, 68730), (350, 61857), (378, 57275), (395, 54810), (406, 53325), (435, 49770), (450, 48111), (474, 45675), (522, 41475), (525, 41238), (553, 39150), (609, 35550), (630, 34365), (675, 32074), (711, 30450), (725, 29862), (783, 27650), (790, 27405), (870, 24885), (945, 22910), (1015, 21330), (1050, 20619), (1106, 19575), (1185, 18270), (1218, 17775), (1305, 16590), (1350, 16037), (1422, 15225), (1450, 14931), (1566, 13825), (1575, 13746), (1659, 13050), (1827, 11850), (1890, 11455), (1975, 10962), (2030, 10665), (2133, 10150), (2175, 9954), (2291, 9450), (2370, 9135), (2610, 8295), (2765, 7830), (3045, 7110), (3150, 6873), (3318, 6525), (3555, 6090), (3654, 5925), (3915, 5530), (3950, 5481), (4266, 5075), (4350, 4977), (4582, 4725)]