21648239

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 23868000

約数和(自身を除く): 2219761

約数列:

[1, 19, 29, 101, 389, 551, 1919, 2929, 7391, 11281, 39289, 55651, 214339, 746491, 1139381, 21648239]

約数ペア:

[(1, 21648239), (19, 1139381), (29, 746491), (101, 214339), (389, 55651), (551, 39289), (1919, 11281), (2929, 7391)]