21343384

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140417}}^1$

素因数の和:140442

約数の個数: 16

約数和(自身を含む): 42125400

約数和(自身を除く): 20782016

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140417, 280834, 561668, 1123336, 2667923, 5335846, 10671692, 21343384]

約数ペア:

[(1, 21343384), (2, 10671692), (4, 5335846), (8, 2667923), (19, 1123336), (38, 561668), (76, 280834), (152, 140417)]