21692281

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2833}}^1$

素因数の和:2896

約数の個数: 16

約数和(自身を含む): 25392640

約数和(自身を除く): 3700359

約数列:

[1, 13, 19, 31, 247, 403, 589, 2833, 7657, 36829, 53827, 87823, 699751, 1141699, 1668637, 21692281]

約数ペア:

[(1, 21692281), (13, 1668637), (19, 1141699), (31, 699751), (247, 87823), (403, 53827), (589, 36829), (2833, 7657)]