21000739179

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{7299527}}^1$

素因数の和:7299674

約数の個数: 16

約数和(自身を含む): 32234715648

約数和(自身を除く): 11233976469

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 7299527, 21898581, 51096689, 153290067, 1000035199, 3000105597, 7000246393, 21000739179]

約数ペア:

[(1, 21000739179), (3, 7000246393), (7, 3000105597), (21, 1000035199), (137, 153290067), (411, 51096689), (959, 21898581), (2877, 7299527)]