21258136

素因数分解:

$2^3\times {\mathrm{439}}^1\times {\mathrm{6053}}^1$

素因数の和:6498

約数の個数: 16

約数和(自身を含む): 39956400

約数和(自身を除く): 18698264

約数列:

[1, 2, 4, 8, 439, 878, 1756, 3512, 6053, 12106, 24212, 48424, 2657267, 5314534, 10629068, 21258136]

約数ペア:

[(1, 21258136), (2, 10629068), (4, 5314534), (8, 2657267), (439, 48424), (878, 24212), (1756, 12106), (3512, 6053)]