139704243

素因数分解:

$3^1\times 7^3\times {\mathrm{137}}^1\times {\mathrm{991}}^1$

素因数の和:1152

約数の個数: 32

約数和(自身を含む): 219033600

約数和(自身を除く): 79329357

約数列:

[1, 3, 7, 21, 49, 137, 147, 343, 411, 959, 991, 1029, 2877, 2973, 6713, 6937, 20139, 20811, 46991, 48559, 135767, 140973, 145677, 339913, 407301, 950369, 1019739, 2851107, 6652583, 19957749, 46568081, 139704243]

約数ペア:

[(1, 139704243), (3, 46568081), (7, 19957749), (21, 6652583), (49, 2851107), (137, 1019739), (147, 950369), (343, 407301), (411, 339913), (959, 145677), (991, 140973), (1029, 135767), (2877, 48559), (2973, 46991), (6713, 20811), (6937, 20139)]