209437949

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{6719}}^1$

素因数の和:6860

約数の個数: 16

約数和(自身を含む): 246650880

約数和(自身を除く): 37212931

約数列:

[1, 7, 61, 73, 427, 511, 4453, 6719, 31171, 47033, 409859, 490487, 2869013, 3433409, 29919707, 209437949]

約数ペア:

[(1, 209437949), (7, 29919707), (61, 3433409), (73, 2869013), (427, 490487), (511, 409859), (4453, 47033), (6719, 31171)]