21762980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57271}}^1$

素因数の和:57299

約数の個数: 24

約数和(自身を含む): 48108480

約数和(自身を除く): 26345500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57271, 114542, 229084, 286355, 572710, 1088149, 1145420, 2176298, 4352596, 5440745, 10881490, 21762980]

約数ペア:

[(1, 21762980), (2, 10881490), (4, 5440745), (5, 4352596), (10, 2176298), (19, 1145420), (20, 1088149), (38, 572710), (76, 286355), (95, 229084), (190, 114542), (380, 57271)]