20942109

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{39439}}^1$

素因数の和:39504

約数の個数: 12

約数和(自身を含む): 30763200

約数和(自身を除く): 9821091

約数列:

[1, 3, 9, 59, 177, 531, 39439, 118317, 354951, 2326901, 6980703, 20942109]

約数ペア:

[(1, 20942109), (3, 6980703), (9, 2326901), (59, 354951), (177, 118317), (531, 39439)]