21242019939

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3905501}}^1$

素因数の和:3905555

約数の個数: 24

約数和(自身を含む): 33837269328

約数和(自身を除く): 12595249389

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 3905501, 11716503, 27338507, 82015521, 144503537, 191369549, 433510611, 574108647, 1011524759, 3034574277, 7080673313, 21242019939]

約数ペア:

[(1, 21242019939), (3, 7080673313), (7, 3034574277), (21, 1011524759), (37, 574108647), (49, 433510611), (111, 191369549), (147, 144503537), (259, 82015521), (777, 27338507), (1813, 11716503), (5439, 3905501)]