20806912

素因数分解:

$2^8\times 7^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 50331456

約数和(自身を除く): 29524544

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, 683, 896, 952, 1088, 1366, 1792, 1904, 2176, 2732, 3808, 4352, 4781, 5464, 7616, 9562, 10928, 11611, 15232, 19124, 21856, 23222, 30464, 38248, 43712, 46444, 76496, 81277, 87424, 92888, 152992, 162554, 174848, 185776, 305984, 325108, 371552, 611968, 650216, 743104, 1223936, 1300432, 1486208, 2600864, 2972416, 5201728, 10403456, 20806912]

約数ペア:

[(1, 20806912), (2, 10403456), (4, 5201728), (7, 2972416), (8, 2600864), (14, 1486208), (16, 1300432), (17, 1223936), (28, 743104), (32, 650216), (34, 611968), (56, 371552), (64, 325108), (68, 305984), (112, 185776), (119, 174848), (128, 162554), (136, 152992), (224, 92888), (238, 87424), (256, 81277), (272, 76496), (448, 46444), (476, 43712), (544, 38248), (683, 30464), (896, 23222), (952, 21856), (1088, 19124), (1366, 15232), (1792, 11611), (1904, 10928), (2176, 9562), (2732, 7616), (3808, 5464), (4352, 4781)]