20389138

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3079}}^1$

素因数の和:3142

約数の個数: 32

約数和(自身を含む): 39029760

約数和(自身を除く): 18640622

約数列:

[1, 2, 7, 11, 14, 22, 43, 77, 86, 154, 301, 473, 602, 946, 3079, 3311, 6158, 6622, 21553, 33869, 43106, 67738, 132397, 237083, 264794, 474166, 926779, 1456367, 1853558, 2912734, 10194569, 20389138]

約数ペア:

[(1, 20389138), (2, 10194569), (7, 2912734), (11, 1853558), (14, 1456367), (22, 926779), (43, 474166), (77, 264794), (86, 237083), (154, 132397), (301, 67738), (473, 43106), (602, 33869), (946, 21553), (3079, 6622), (3311, 6158)]