20624391

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 30785040

約数和(自身を除く): 10160649

約数列:

[1, 3, 9, 43, 129, 137, 387, 389, 411, 1167, 1233, 3501, 5891, 16727, 17673, 50181, 53019, 53293, 150543, 159879, 479637, 2291599, 6874797, 20624391]

約数ペア:

[(1, 20624391), (3, 6874797), (9, 2291599), (43, 479637), (129, 159879), (137, 150543), (387, 53293), (389, 53019), (411, 50181), (1167, 17673), (1233, 16727), (3501, 5891)]