21279202

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79997}}^1$

素因数の和:80025

約数の個数: 16

約数和(自身を含む): 38399040

約数和(自身を除く): 17119838

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79997, 159994, 559979, 1119958, 1519943, 3039886, 10639601, 21279202]

約数ペア:

[(1, 21279202), (2, 10639601), (7, 3039886), (14, 1519943), (19, 1119958), (38, 559979), (133, 159994), (266, 79997)]