19710208

素因数分解:

$2^8\times 7^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 47682432

約数和(自身を除く): 27972224

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 256, 272, 448, 476, 544, 647, 896, 952, 1088, 1294, 1792, 1904, 2176, 2588, 3808, 4352, 4529, 5176, 7616, 9058, 10352, 10999, 15232, 18116, 20704, 21998, 30464, 36232, 41408, 43996, 72464, 76993, 82816, 87992, 144928, 153986, 165632, 175984, 289856, 307972, 351968, 579712, 615944, 703936, 1159424, 1231888, 1407872, 2463776, 2815744, 4927552, 9855104, 19710208]

約数ペア:

[(1, 19710208), (2, 9855104), (4, 4927552), (7, 2815744), (8, 2463776), (14, 1407872), (16, 1231888), (17, 1159424), (28, 703936), (32, 615944), (34, 579712), (56, 351968), (64, 307972), (68, 289856), (112, 175984), (119, 165632), (128, 153986), (136, 144928), (224, 87992), (238, 82816), (256, 76993), (272, 72464), (448, 43996), (476, 41408), (544, 36232), (647, 30464), (896, 21998), (952, 20704), (1088, 18116), (1294, 15232), (1792, 10999), (1904, 10352), (2176, 9058), (2588, 7616), (3808, 5176), (4352, 4529)]