639423939

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2768069}}^1$

素因数の和:2768090

約数の個数: 16

約数和(自身を含む): 1062938880

約数和(自身を除く): 423514941

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 2768069, 8304207, 19376483, 30448759, 58129449, 91346277, 213141313, 639423939]

約数ペア:

[(1, 639423939), (3, 213141313), (7, 91346277), (11, 58129449), (21, 30448759), (33, 19376483), (77, 8304207), (231, 2768069)]