20707918

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2861}}^1$

素因数の和:2928

約数の個数: 32

約数和(自身を含む): 39564288

約数和(自身を除く): 18856370

約数列:

[1, 2, 7, 11, 14, 22, 47, 77, 94, 154, 329, 517, 658, 1034, 2861, 3619, 5722, 7238, 20027, 31471, 40054, 62942, 134467, 220297, 268934, 440594, 941269, 1479137, 1882538, 2958274, 10353959, 20707918]

約数ペア:

[(1, 20707918), (2, 10353959), (7, 2958274), (11, 1882538), (14, 1479137), (22, 941269), (47, 440594), (77, 268934), (94, 220297), (154, 134467), (329, 62942), (517, 40054), (658, 31471), (1034, 20027), (2861, 7238), (3619, 5722)]