21004511

素因数分解:

${\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:443

約数の個数: 16

約数和(自身を含む): 23705088

約数和(自身を除く): 2700577

約数列:

[1, 11, 43, 121, 367, 473, 1331, 4037, 5203, 15781, 44407, 57233, 173591, 488477, 1909501, 21004511]

約数ペア:

[(1, 21004511), (11, 1909501), (43, 488477), (121, 173591), (367, 57233), (473, 44407), (1331, 15781), (4037, 5203)]