21069216

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{1493}}^1$

素因数の和:1523

約数の個数: 108

約数和(自身を含む): 69744402

約数和(自身を除く): 48675186

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 72, 84, 96, 98, 112, 126, 144, 147, 168, 196, 224, 252, 288, 294, 336, 392, 441, 504, 588, 672, 784, 882, 1008, 1176, 1493, 1568, 1764, 2016, 2352, 2986, 3528, 4479, 4704, 5972, 7056, 8958, 10451, 11944, 13437, 14112, 17916, 20902, 23888, 26874, 31353, 35832, 41804, 47776, 53748, 62706, 71664, 73157, 83608, 94059, 107496, 125412, 143328, 146314, 167216, 188118, 214992, 219471, 250824, 292628, 334432, 376236, 429984, 438942, 501648, 585256, 658413, 752472, 877884, 1003296, 1170512, 1316826, 1504944, 1755768, 2341024, 2633652, 3009888, 3511536, 5267304, 7023072, 10534608, 21069216]

約数ペア:

[(1, 21069216), (2, 10534608), (3, 7023072), (4, 5267304), (6, 3511536), (7, 3009888), (8, 2633652), (9, 2341024), (12, 1755768), (14, 1504944), (16, 1316826), (18, 1170512), (21, 1003296), (24, 877884), (28, 752472), (32, 658413), (36, 585256), (42, 501648), (48, 438942), (49, 429984), (56, 376236), (63, 334432), (72, 292628), (84, 250824), (96, 219471), (98, 214992), (112, 188118), (126, 167216), (144, 146314), (147, 143328), (168, 125412), (196, 107496), (224, 94059), (252, 83608), (288, 73157), (294, 71664), (336, 62706), (392, 53748), (441, 47776), (504, 41804), (588, 35832), (672, 31353), (784, 26874), (882, 23888), (1008, 20902), (1176, 17916), (1493, 14112), (1568, 13437), (1764, 11944), (2016, 10451), (2352, 8958), (2986, 7056), (3528, 5972), (4479, 4704)]