19380859

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 20958976

約数和(自身を除く): 1578117

約数列:

[1, 31, 37, 61, 277, 1147, 1891, 2257, 8587, 10249, 16897, 69967, 317719, 523807, 625189, 19380859]

約数ペア:

[(1, 19380859), (31, 625189), (37, 523807), (61, 317719), (277, 69967), (1147, 16897), (1891, 10249), (2257, 8587)]