21031200

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:176

約数の個数: 216

約数和(自身を含む): 77995008

約数和(自身を除く): 56963808

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 25, 30, 32, 36, 40, 45, 46, 48, 50, 60, 69, 72, 75, 80, 90, 92, 96, 100, 115, 120, 127, 138, 144, 150, 160, 180, 184, 200, 207, 225, 230, 240, 254, 276, 288, 300, 345, 360, 368, 381, 400, 414, 450, 460, 480, 508, 552, 575, 600, 635, 690, 720, 736, 762, 800, 828, 900, 920, 1016, 1035, 1104, 1143, 1150, 1200, 1270, 1380, 1440, 1524, 1656, 1725, 1800, 1840, 1905, 2032, 2070, 2208, 2286, 2300, 2400, 2540, 2760, 2921, 3048, 3175, 3312, 3450, 3600, 3680, 3810, 4064, 4140, 4572, 4600, 5080, 5175, 5520, 5715, 5842, 6096, 6350, 6624, 6900, 7200, 7620, 8280, 8763, 9144, 9200, 9525, 10160, 10350, 11040, 11430, 11684, 12192, 12700, 13800, 14605, 15240, 16560, 17526, 18288, 18400, 19050, 20320, 20700, 22860, 23368, 25400, 26289, 27600, 28575, 29210, 30480, 33120, 35052, 36576, 38100, 41400, 43815, 45720, 46736, 50800, 52578, 55200, 57150, 58420, 60960, 70104, 73025, 76200, 82800, 87630, 91440, 93472, 101600, 105156, 114300, 116840, 131445, 140208, 146050, 152400, 165600, 175260, 182880, 210312, 219075, 228600, 233680, 262890, 280416, 292100, 304800, 350520, 420624, 438150, 457200, 467360, 525780, 584200, 657225, 701040, 841248, 876300, 914400, 1051560, 1168400, 1314450, 1402080, 1752600, 2103120, 2336800, 2628900, 3505200, 4206240, 5257800, 7010400, 10515600, 21031200]

約数ペア:

[(1, 21031200), (2, 10515600), (3, 7010400), (4, 5257800), (5, 4206240), (6, 3505200), (8, 2628900), (9, 2336800), (10, 2103120), (12, 1752600), (15, 1402080), (16, 1314450), (18, 1168400), (20, 1051560), (23, 914400), (24, 876300), (25, 841248), (30, 701040), (32, 657225), (36, 584200), (40, 525780), (45, 467360), (46, 457200), (48, 438150), (50, 420624), (60, 350520), (69, 304800), (72, 292100), (75, 280416), (80, 262890), (90, 233680), (92, 228600), (96, 219075), (100, 210312), (115, 182880), (120, 175260), (127, 165600), (138, 152400), (144, 146050), (150, 140208), (160, 131445), (180, 116840), (184, 114300), (200, 105156), (207, 101600), (225, 93472), (230, 91440), (240, 87630), (254, 82800), (276, 76200), (288, 73025), (300, 70104), (345, 60960), (360, 58420), (368, 57150), (381, 55200), (400, 52578), (414, 50800), (450, 46736), (460, 45720), (480, 43815), (508, 41400), (552, 38100), (575, 36576), (600, 35052), (635, 33120), (690, 30480), (720, 29210), (736, 28575), (762, 27600), (800, 26289), (828, 25400), (900, 23368), (920, 22860), (1016, 20700), (1035, 20320), (1104, 19050), (1143, 18400), (1150, 18288), (1200, 17526), (1270, 16560), (1380, 15240), (1440, 14605), (1524, 13800), (1656, 12700), (1725, 12192), (1800, 11684), (1840, 11430), (1905, 11040), (2032, 10350), (2070, 10160), (2208, 9525), (2286, 9200), (2300, 9144), (2400, 8763), (2540, 8280), (2760, 7620), (2921, 7200), (3048, 6900), (3175, 6624), (3312, 6350), (3450, 6096), (3600, 5842), (3680, 5715), (3810, 5520), (4064, 5175), (4140, 5080), (4572, 4600)]