20181279111

素因数分解:

$3^1\times 7^2\times {\mathrm{137287613}}^1$

素因数の和:137287630

約数の個数: 12

約数和(自身を含む): 31301575992

約数和(自身を除く): 11120296881

約数列:

[1, 3, 7, 21, 49, 147, 137287613, 411862839, 961013291, 2883039873, 6727093037, 20181279111]

約数ペア:

[(1, 20181279111), (3, 6727093037), (7, 2883039873), (21, 961013291), (49, 411862839), (147, 137287613)]