21362866

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{20903}}^1$

素因数の和:20985

約数の個数: 16

約数和(自身を含む): 37125504

約数和(自身を除く): 15762638

約数列:

[1, 2, 7, 14, 73, 146, 511, 1022, 20903, 41806, 146321, 292642, 1525919, 3051838, 10681433, 21362866]

約数ペア:

[(1, 21362866), (2, 10681433), (7, 3051838), (14, 1525919), (73, 292642), (146, 146321), (511, 41806), (1022, 20903)]