21254100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:402

約数の個数: 144

約数和(自身を含む): 72912000

約数和(自身を除く): 51657900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 29, 30, 35, 42, 50, 58, 60, 70, 75, 84, 87, 100, 105, 116, 140, 145, 150, 174, 175, 203, 210, 290, 300, 348, 349, 350, 406, 420, 435, 525, 580, 609, 698, 700, 725, 812, 870, 1015, 1047, 1050, 1218, 1396, 1450, 1740, 1745, 2030, 2094, 2100, 2175, 2436, 2443, 2900, 3045, 3490, 4060, 4188, 4350, 4886, 5075, 5235, 6090, 6980, 7329, 8700, 8725, 9772, 10121, 10150, 10470, 12180, 12215, 14658, 15225, 17450, 20242, 20300, 20940, 24430, 26175, 29316, 30363, 30450, 34900, 36645, 40484, 48860, 50605, 52350, 60726, 60900, 61075, 70847, 73290, 101210, 104700, 121452, 122150, 141694, 146580, 151815, 183225, 202420, 212541, 244300, 253025, 283388, 303630, 354235, 366450, 425082, 506050, 607260, 708470, 732900, 759075, 850164, 1012100, 1062705, 1416940, 1518150, 1771175, 2125410, 3036300, 3542350, 4250820, 5313525, 7084700, 10627050, 21254100]

約数ペア:

[(1, 21254100), (2, 10627050), (3, 7084700), (4, 5313525), (5, 4250820), (6, 3542350), (7, 3036300), (10, 2125410), (12, 1771175), (14, 1518150), (15, 1416940), (20, 1062705), (21, 1012100), (25, 850164), (28, 759075), (29, 732900), (30, 708470), (35, 607260), (42, 506050), (50, 425082), (58, 366450), (60, 354235), (70, 303630), (75, 283388), (84, 253025), (87, 244300), (100, 212541), (105, 202420), (116, 183225), (140, 151815), (145, 146580), (150, 141694), (174, 122150), (175, 121452), (203, 104700), (210, 101210), (290, 73290), (300, 70847), (348, 61075), (349, 60900), (350, 60726), (406, 52350), (420, 50605), (435, 48860), (525, 40484), (580, 36645), (609, 34900), (698, 30450), (700, 30363), (725, 29316), (812, 26175), (870, 24430), (1015, 20940), (1047, 20300), (1050, 20242), (1218, 17450), (1396, 15225), (1450, 14658), (1740, 12215), (1745, 12180), (2030, 10470), (2094, 10150), (2100, 10121), (2175, 9772), (2436, 8725), (2443, 8700), (2900, 7329), (3045, 6980), (3490, 6090), (4060, 5235), (4188, 5075), (4350, 4886)]