21156004

素因数分解:

$2^2\times {\mathrm{181}}^1\times {\mathrm{29221}}^1$

素因数の和:29406

約数の個数: 12

約数和(自身を含む): 37228828

約数和(自身を除く): 16072824

約数列:

[1, 2, 4, 181, 362, 724, 29221, 58442, 116884, 5289001, 10578002, 21156004]

約数ペア:

[(1, 21156004), (2, 10578002), (4, 5289001), (181, 116884), (362, 58442), (724, 29221)]