20173881

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73897}}^1$

素因数の和:73920

約数の個数: 16

約数和(自身を含む): 33106304

約数和(自身を除く): 12932423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 73897, 221691, 517279, 960661, 1551837, 2881983, 6724627, 20173881]

約数ペア:

[(1, 20173881), (3, 6724627), (7, 2881983), (13, 1551837), (21, 960661), (39, 517279), (91, 221691), (273, 73897)]