20407539

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{3691}}^1$

素因数の和:3810

約数の個数: 16

約数和(自身を含む): 28945280

約数和(自身を除く): 8537741

約数列:

[1, 3, 19, 57, 97, 291, 1843, 3691, 5529, 11073, 70129, 210387, 358027, 1074081, 6802513, 20407539]

約数ペア:

[(1, 20407539), (3, 6802513), (19, 1074081), (57, 358027), (97, 210387), (291, 70129), (1843, 11073), (3691, 5529)]