217981736

素因数分解:

$2^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{11027}}^1$

素因数の和:11393

約数の個数: 32

約数和(自身を含む): 468469440

約数和(自身を除く): 250487704

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353, 706, 1412, 2471, 2824, 4942, 9884, 11027, 19768, 22054, 44108, 77189, 88216, 154378, 308756, 617512, 3892531, 7785062, 15570124, 27247717, 31140248, 54495434, 108990868, 217981736]

約数ペア:

[(1, 217981736), (2, 108990868), (4, 54495434), (7, 31140248), (8, 27247717), (14, 15570124), (28, 7785062), (56, 3892531), (353, 617512), (706, 308756), (1412, 154378), (2471, 88216), (2824, 77189), (4942, 44108), (9884, 22054), (11027, 19768)]