21959168

素因数分解:

$2^9\times 7^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1$

素因数の和:593

約数の個数: 80

約数和(自身を含む): 54800064

約数和(自身を除く): 32840896

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 256, 308, 352, 448, 512, 557, 616, 704, 896, 1114, 1232, 1408, 1792, 2228, 2464, 2816, 3584, 3899, 4456, 4928, 5632, 6127, 7798, 8912, 9856, 12254, 15596, 17824, 19712, 24508, 31192, 35648, 39424, 42889, 49016, 62384, 71296, 85778, 98032, 124768, 142592, 171556, 196064, 249536, 285184, 343112, 392128, 499072, 686224, 784256, 998144, 1372448, 1568512, 1996288, 2744896, 3137024, 5489792, 10979584, 21959168]

約数ペア:

[(1, 21959168), (2, 10979584), (4, 5489792), (7, 3137024), (8, 2744896), (11, 1996288), (14, 1568512), (16, 1372448), (22, 998144), (28, 784256), (32, 686224), (44, 499072), (56, 392128), (64, 343112), (77, 285184), (88, 249536), (112, 196064), (128, 171556), (154, 142592), (176, 124768), (224, 98032), (256, 85778), (308, 71296), (352, 62384), (448, 49016), (512, 42889), (557, 39424), (616, 35648), (704, 31192), (896, 24508), (1114, 19712), (1232, 17824), (1408, 15596), (1792, 12254), (2228, 9856), (2464, 8912), (2816, 7798), (3584, 6127), (3899, 5632), (4456, 4928)]