20431156

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{14149}}^1$

素因数の和:14191

約数の個数: 18

約数和(自身を含む): 37738050

約数和(自身を除く): 17306894

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 14149, 28298, 56596, 268831, 537662, 1075324, 5107789, 10215578, 20431156]

約数ペア:

[(1, 20431156), (2, 10215578), (4, 5107789), (19, 1075324), (38, 537662), (76, 268831), (361, 56596), (722, 28298), (1444, 14149)]