20827251

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{929}}^1$

素因数の和:1035

約数の個数: 24

約数和(自身を含む): 31337280

約数和(自身を除く): 10510029

約数列:

[1, 3, 9, 47, 53, 141, 159, 423, 477, 929, 2491, 2787, 7473, 8361, 22419, 43663, 49237, 130989, 147711, 392967, 443133, 2314139, 6942417, 20827251]

約数ペア:

[(1, 20827251), (3, 6942417), (9, 2314139), (47, 443133), (53, 392967), (141, 147711), (159, 130989), (423, 49237), (477, 43663), (929, 22419), (2491, 8361), (2787, 7473)]