20431684

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56131}}^1$

素因数の和:56155

約数の個数: 24

約数和(自身を含む): 44007488

約数和(自身を除く): 23575804

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 56131, 112262, 224524, 392917, 729703, 785834, 1459406, 1571668, 2918812, 5107921, 10215842, 20431684]

約数ペア:

[(1, 20431684), (2, 10215842), (4, 5107921), (7, 2918812), (13, 1571668), (14, 1459406), (26, 785834), (28, 729703), (52, 392917), (91, 224524), (182, 112262), (364, 56131)]