19988777776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{1103}}^1\times {\mathrm{102967}}^1$

素因数の和:104089

約数の個数: 40

約数和(自身を含む): 42287721984

約数和(自身を除く): 22298944208

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 1103, 2206, 4412, 8824, 12133, 17648, 24266, 48532, 97064, 102967, 194128, 205934, 411868, 823736, 1132637, 1647472, 2265274, 4530548, 9061096, 18122192, 113572601, 227145202, 454290404, 908580808, 1249298611, 1817161616, 2498597222, 4997194444, 9994388888, 19988777776]

約数ペア:

[(1, 19988777776), (2, 9994388888), (4, 4997194444), (8, 2498597222), (11, 1817161616), (16, 1249298611), (22, 908580808), (44, 454290404), (88, 227145202), (176, 113572601), (1103, 18122192), (2206, 9061096), (4412, 4530548), (8824, 2265274), (12133, 1647472), (17648, 1132637), (24266, 823736), (48532, 411868), (97064, 205934), (102967, 194128)]