20123709

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{739}}^1$

素因数の和:1084

約数の個数: 16

約数和(自身を含む): 27883200

約数和(自身を除く): 7759491

約数列:

[1, 3, 29, 87, 313, 739, 939, 2217, 9077, 21431, 27231, 64293, 231307, 693921, 6707903, 20123709]

約数ペア:

[(1, 20123709), (3, 6707903), (29, 693921), (87, 231307), (313, 64293), (739, 27231), (939, 21431), (2217, 9077)]