20204429

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2081}}^1$

素因数の和:2180

約数の個数: 16

約数和(自身を含む): 24650880

約数和(自身を除く): 4446451

約数列:

[1, 7, 19, 73, 133, 511, 1387, 2081, 9709, 14567, 39539, 151913, 276773, 1063391, 2886347, 20204429]

約数ペア:

[(1, 20204429), (7, 2886347), (19, 1063391), (73, 276773), (133, 151913), (511, 39539), (1387, 14567), (2081, 9709)]