2021859217

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{2171707}}^1$

素因数の和:2171740

約数の個数: 12

約数和(自身を含む): 2475747120

約数和(自身を除く): 453887903

約数列:

[1, 7, 19, 49, 133, 931, 2171707, 15201949, 41262433, 106413643, 288837031, 2021859217]

約数ペア:

[(1, 2021859217), (7, 288837031), (19, 106413643), (49, 41262433), (133, 15201949), (931, 2171707)]