18277784

素因数分解:

$2^3\times 7^3\times {\mathrm{6661}}^1$

素因数の和:6688

約数の個数: 32

約数和(自身を含む): 39972000

約数和(自身を除く): 21694216

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 6661, 13322, 26644, 46627, 53288, 93254, 186508, 326389, 373016, 652778, 1305556, 2284723, 2611112, 4569446, 9138892, 18277784]

約数ペア:

[(1, 18277784), (2, 9138892), (4, 4569446), (7, 2611112), (8, 2284723), (14, 1305556), (28, 652778), (49, 373016), (56, 326389), (98, 186508), (196, 93254), (343, 53288), (392, 46627), (686, 26644), (1372, 13322), (2744, 6661)]