21505792

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1091}}^1$

素因数の和:1125

約数の個数: 72

約数和(自身を含む): 53569152

約数和(自身を除く): 32063360

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, 616, 704, 896, 1091, 1232, 1408, 1792, 2182, 2464, 2816, 4364, 4928, 7637, 8728, 9856, 12001, 15274, 17456, 19712, 24002, 30548, 34912, 48004, 61096, 69824, 84007, 96008, 122192, 139648, 168014, 192016, 244384, 279296, 336028, 384032, 488768, 672056, 768064, 977536, 1344112, 1536128, 1955072, 2688224, 3072256, 5376448, 10752896, 21505792]

約数ペア:

[(1, 21505792), (2, 10752896), (4, 5376448), (7, 3072256), (8, 2688224), (11, 1955072), (14, 1536128), (16, 1344112), (22, 977536), (28, 768064), (32, 672056), (44, 488768), (56, 384032), (64, 336028), (77, 279296), (88, 244384), (112, 192016), (128, 168014), (154, 139648), (176, 122192), (224, 96008), (256, 84007), (308, 69824), (352, 61096), (448, 48004), (616, 34912), (704, 30548), (896, 24002), (1091, 19712), (1232, 17456), (1408, 15274), (1792, 12001), (2182, 9856), (2464, 8728), (2816, 7637), (4364, 4928)]