31031978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{1949}}^1$

素因数の和:2389

約数の個数: 16

約数和(自身を含む): 49140000

約数和(自身を除く): 18108022

約数列:

[1, 2, 19, 38, 419, 838, 1949, 3898, 7961, 15922, 37031, 74062, 816631, 1633262, 15515989, 31031978]

約数ペア:

[(1, 31031978), (2, 15515989), (19, 1633262), (38, 816631), (419, 74062), (838, 37031), (1949, 15922), (3898, 7961)]