20849193

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 31042440

約数和(自身を除く): 10193247

約数列:

[1, 3, 9, 53, 109, 159, 327, 401, 477, 981, 1203, 3609, 5777, 17331, 21253, 43709, 51993, 63759, 131127, 191277, 393381, 2316577, 6949731, 20849193]

約数ペア:

[(1, 20849193), (3, 6949731), (9, 2316577), (53, 393381), (109, 191277), (159, 131127), (327, 63759), (401, 51993), (477, 43709), (981, 21253), (1203, 17331), (3609, 5777)]