21131392

素因数分解:

$2^7\times {\mathrm{165089}}^1$

素因数の和:165103

約数の個数: 16

約数和(自身を含む): 42097950

約数和(自身を除く): 20966558

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 165089, 330178, 660356, 1320712, 2641424, 5282848, 10565696, 21131392]

約数ペア:

[(1, 21131392), (2, 10565696), (4, 5282848), (8, 2641424), (16, 1320712), (32, 660356), (64, 330178), (128, 165089)]