20509888

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2693}}^1$

素因数の和:2729

約数の個数: 56

約数和(自身を含む): 49267872

約数和(自身を除く): 28757984

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 136, 224, 238, 272, 448, 476, 544, 952, 1088, 1904, 2693, 3808, 5386, 7616, 10772, 18851, 21544, 37702, 43088, 45781, 75404, 86176, 91562, 150808, 172352, 183124, 301616, 320467, 366248, 603232, 640934, 732496, 1206464, 1281868, 1464992, 2563736, 2929984, 5127472, 10254944, 20509888]

約数ペア:

[(1, 20509888), (2, 10254944), (4, 5127472), (7, 2929984), (8, 2563736), (14, 1464992), (16, 1281868), (17, 1206464), (28, 732496), (32, 640934), (34, 603232), (56, 366248), (64, 320467), (68, 301616), (112, 183124), (119, 172352), (136, 150808), (224, 91562), (238, 86176), (272, 75404), (448, 45781), (476, 43088), (544, 37702), (952, 21544), (1088, 18851), (1904, 10772), (2693, 7616), (3808, 5386)]