20291739

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9817}}^1$

素因数の和:9886

約数の個数: 16

約数和(自身を含む): 29689632

約数和(自身を除く): 9397893

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 9817, 29451, 127621, 382863, 520301, 1560903, 6763913, 20291739]

約数ペア:

[(1, 20291739), (3, 6763913), (13, 1560903), (39, 520301), (53, 382863), (159, 127621), (689, 29451), (2067, 9817)]