21153888

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{1499}}^1$

素因数の和:1529

約数の個数: 108

約数和(自身を含む): 70024500

約数和(自身を除く): 48870612

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, 1499, 1568, 1764, 2016, 2352, 2998, 3528, 4497, 4704, 5996, 7056, 8994, 10493, 11992, 13491, 14112, 17988, 20986, 23984, 26982, 31479, 35976, 41972, 47968, 53964, 62958, 71952, 73451, 83944, 94437, 107928, 125916, 143904, 146902, 167888, 188874, 215856, 220353, 251832, 293804, 335776, 377748, 431712, 440706, 503664, 587608, 661059, 755496, 881412, 1007328, 1175216, 1322118, 1510992, 1762824, 2350432, 2644236, 3021984, 3525648, 5288472, 7051296, 10576944, 21153888]

約数ペア:

[(1, 21153888), (2, 10576944), (3, 7051296), (4, 5288472), (6, 3525648), (7, 3021984), (8, 2644236), (9, 2350432), (12, 1762824), (14, 1510992), (16, 1322118), (18, 1175216), (21, 1007328), (24, 881412), (28, 755496), (32, 661059), (36, 587608), (42, 503664), (48, 440706), (49, 431712), (56, 377748), (63, 335776), (72, 293804), (84, 251832), (96, 220353), (98, 215856), (112, 188874), (126, 167888), (144, 146902), (147, 143904), (168, 125916), (196, 107928), (224, 94437), (252, 83944), (288, 73451), (294, 71952), (336, 62958), (392, 53964), (441, 47968), (504, 41972), (588, 35976), (672, 31479), (784, 26982), (882, 23984), (1008, 20986), (1176, 17988), (1499, 14112), (1568, 13491), (1764, 11992), (2016, 10493), (2352, 8994), (2998, 7056), (3528, 5996), (4497, 4704)]