1520581653

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{264403}}^1$

素因数の和:264486

約数の個数: 20

約数和(自身を含む): 2303487648

約数和(自身を除く): 782905995

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 264403, 793209, 2379627, 7138881, 18772613, 21416643, 56317839, 168953517, 506860551, 1520581653]

約数ペア:

[(1, 1520581653), (3, 506860551), (9, 168953517), (27, 56317839), (71, 21416643), (81, 18772613), (213, 7138881), (639, 2379627), (1917, 793209), (5751, 264403)]