20813177

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1973}}^1$

素因数の和:2128

約数の個数: 16

約数和(自身を含む): 26151552

約数和(自身を除く): 5338375

約数列:

[1, 7, 11, 77, 137, 959, 1507, 1973, 10549, 13811, 21703, 151921, 270301, 1892107, 2973311, 20813177]

約数ペア:

[(1, 20813177), (7, 2973311), (11, 1892107), (77, 270301), (137, 151921), (959, 21703), (1507, 13811), (1973, 10549)]