20890844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1667}}^1$

素因数の和:1925

約数の個数: 24

約数和(自身を含む): 39558288

約数和(自身を除く): 18667444

約数列:

[1, 2, 4, 13, 26, 52, 241, 482, 964, 1667, 3133, 3334, 6266, 6668, 12532, 21671, 43342, 86684, 401747, 803494, 1606988, 5222711, 10445422, 20890844]

約数ペア:

[(1, 20890844), (2, 10445422), (4, 5222711), (13, 1606988), (26, 803494), (52, 401747), (241, 86684), (482, 43342), (964, 21671), (1667, 12532), (3133, 6668), (3334, 6266)]