21414960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{607}}^1$

素因数の和:640

約数の個数: 180

約数和(自身を含む): 83798208

約数和(自身を除く): 62383248

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 607, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1214, 1260, 1470, 1680, 1764, 1821, 1960, 2205, 2352, 2428, 2520, 2940, 3035, 3528, 3642, 3920, 4249, 4410, 4856, 5040, 5463, 5880, 6070, 7056, 7284, 8498, 8820, 9105, 9712, 10926, 11760, 12140, 12747, 14568, 16996, 17640, 18210, 21245, 21852, 24280, 25494, 27315, 29136, 29743, 33992, 35280, 36420, 38241, 42490, 43704, 48560, 50988, 54630, 59486, 63735, 67984, 72840, 76482, 84980, 87408, 89229, 101976, 109260, 118972, 127470, 145680, 148715, 152964, 169960, 178458, 191205, 203952, 218520, 237944, 254940, 267687, 297430, 305928, 339920, 356916, 382410, 437040, 446145, 475888, 509880, 535374, 594860, 611856, 713832, 764820, 892290, 1019760, 1070748, 1189720, 1338435, 1427664, 1529640, 1784580, 2141496, 2379440, 2676870, 3059280, 3569160, 4282992, 5353740, 7138320, 10707480, 21414960]

約数ペア:

[(1, 21414960), (2, 10707480), (3, 7138320), (4, 5353740), (5, 4282992), (6, 3569160), (7, 3059280), (8, 2676870), (9, 2379440), (10, 2141496), (12, 1784580), (14, 1529640), (15, 1427664), (16, 1338435), (18, 1189720), (20, 1070748), (21, 1019760), (24, 892290), (28, 764820), (30, 713832), (35, 611856), (36, 594860), (40, 535374), (42, 509880), (45, 475888), (48, 446145), (49, 437040), (56, 382410), (60, 356916), (63, 339920), (70, 305928), (72, 297430), (80, 267687), (84, 254940), (90, 237944), (98, 218520), (105, 203952), (112, 191205), (120, 178458), (126, 169960), (140, 152964), (144, 148715), (147, 145680), (168, 127470), (180, 118972), (196, 109260), (210, 101976), (240, 89229), (245, 87408), (252, 84980), (280, 76482), (294, 72840), (315, 67984), (336, 63735), (360, 59486), (392, 54630), (420, 50988), (441, 48560), (490, 43704), (504, 42490), (560, 38241), (588, 36420), (607, 35280), (630, 33992), (720, 29743), (735, 29136), (784, 27315), (840, 25494), (882, 24280), (980, 21852), (1008, 21245), (1176, 18210), (1214, 17640), (1260, 16996), (1470, 14568), (1680, 12747), (1764, 12140), (1821, 11760), (1960, 10926), (2205, 9712), (2352, 9105), (2428, 8820), (2520, 8498), (2940, 7284), (3035, 7056), (3528, 6070), (3642, 5880), (3920, 5463), (4249, 5040), (4410, 4856)]